1. come first 首要；首先要考虑的
【例句】My career is important, but my family comes first. 我的事业固然重要，但家庭还是第一位的。
2. first and foremost 首先；首要的是
【例句】He is first and foremost [=primarily, fundamentally] a teacher. 他首先是一名教师。
3. first and last 总的来说；从各方面看
【例句】This is first and last a matter of national security. 总而言之，这是一个国家安全问题。
4. first come, first served 先来先接待；先来先供应；按先来后到的原则
【例句】The campsites are first come, first served, so we'd better get there early. = The campsites are assigned on a first-come-first-serve basis, so we'd better get there early. 露营帐篷搭建地是先到先得，所以我们最好早点到那儿。
5. first among equals 与小组其他成员权利和地位平等的首领
【例句】As a director, he encourages collaboration and considers himself only (the) first among equals. 作为主管，他鼓励团队协作，也把自己看成是一个与大家地位平等的头头。
6. first thing 任何一件事；首先；马上；一早
【例句】He doesn't know/understand the first thing about the problems we've been having. 对于我们面临的问题，他一无所知。
She promised to call first thing in the morning. 她答应一早就打电话。
7. first things first 要事先办
【例句】I know you're eager to start shopping for a car, but first things first—you need to find out how much you can afford to spend. 我知道你急着买车，不过事情要分个轻重缓急，你得先清楚自己能付多少钱。
8. in the first flush of 在兴奋的初期；在充满活力的初期
【例句】Everyone felt hopeful in the first flush of victory. 刚尝到胜利喜悦时，每个人都充满了希望。
9. in the first instance 首先
【例句】You will be seen in the first instance by your own doctor who may then send you to a specialist. 首先你的家庭医生会看你的病，然后他/她可能推荐你去看专家门诊。
10. in the first place 起初，原先（用于句尾表示开始时本应该做的事或开始时的实际情况）
【例句】I didn't care much for the job in the first place. 起初我并不太喜欢这份工作。
11. love at first sight 一见钟情（也用作比喻）
【例句】When he saw the house, it was love at first sight. [=he loved the house as soon as he saw it] 他第一眼看到这个房子就喜欢上了它。
12. first of all/first off 首先
【例句】Let me explain, first of all, why I called this meeting. 首先，请让我说明一下召集这次会议的原因。
First off, there's some confusion we have to clear up. 首先，有些疑惑我必须澄清。
13. at first 一开始的时候；起初
【例句】At first I thought she was crying, but then I realized she was actually laughing. 一开始，我以为她在哭，但后来发现她其实是在笑。
14. from the first 从一开始
【例句】I've loved her from the first. 我对她一见倾心。
15. first and last 从各方面看；完全地
【例句】She regarded herself, first and last, as a musician. 她认为她自己是一个不折不扣的音乐家。
16. put sb/sth first 认为…最重要；把…放在第一位
【例句】She always puts her children first. 她总是把子女放在第一位。
17. from first to last 从头至尾；自始至终
【例句】It's a fine performance that commands attention from first to last. 这是个精彩的演出，自始至终都扣人心弦。
18. every second 表重复频率
【例句】We elect a mayor every second year. [=in alternate years; every other year] 我们每隔一年选一次市长。
19. second only to 仅次于
【例句】Rice is second only to corn as the state's major crop. 大米是这个州除了玉米之外最重要的农作物。
20. second to none 最好的
【例句】The city's public transportation system is second to none. 这个城市的公交系统是最好的。
21. just a second 等一下；请稍候
【例句】Just a second and I will get that book for you. 请稍等，我这就把书给你拿来。
22. just this minute/second / just now 刚才；方才
【例句】I was just this minute thinking about calling you. 我刚刚想要给你打电话。
23. wait a minute/moment/second 等一会儿；稍等一下
【例句】Can you wait a second while I make a call? 你能等一会儿让我打个电话吗？
24. the third time is the charm （但愿）第三次会交好运
25. bad/good (etc.) with numbers 不擅长/擅长算术
【例句】What's 43 times 12? Oh, I don't know—I'm bad/lousy with numbers. [=I am bad at mathematics] 43乘12是多少？噢，我不知道——我数学很差。
Ask her to do the books, she's good with numbers. 请她来做账吧，她擅长算术。
26. beyond number 无数的；数不清的
【例句】The stars are beyond number. 星星数不胜数。
27. by numbers 例行常规；机械地
【例句】Dancing by the numbers isn't good enough. You have to really feel the music. 不能只是机械地跳舞，你得去真正感受音乐。
28. do a number on 伤害；损坏
【例句】This heavy backpack is doing a number on my back. 这么重的背包会伤到我的背。
29. have someone's number 了解某人底细
【例句】She thinks she's got my number, but I'm going to prove her wrong. 她以为她了解我的底细，但我要证明她错了。
30. without number 无数的；数不清的
【例句】This area has been inhabited for years without number. [=for very many years] 人们已在此居住了数不清的岁月。
31. your number is up 死期到了；劫数到了
【例句】You never know when your number is up. [=when you will die]你永远不会知道何时是你的死期。
32. days are numbered 寿数将尽；死期将至；劫数将至
【例句】The days of large gas-guzzling cars are numbered. [=people will not be making/buying large gas-guzzling cars for much longer] 高油耗汽车就快要退出市场了。
33. weight of numbers 人多势众；团队力量（或影响）
【例句】They won the argument by sheer weight of numbers. 他们纯粹靠人多势众在争论中获胜。
34. ninety-nine times out of a hundred 几乎总是；通常
【例句】Ninety-nine times out of a hundred, you can fix the problem by restarting the computer. 十有八九，你都可以通过重启电脑来解决这个问题。
35. a/one hundred per cent 在各方面；百分之百；完全
【例句】I'm not a hundred per cent sure. 我不能百分之百肯定。
My family supports me one hundred per cent. 我的家人全力支持我。
36.give a hundred (and ten) per cent 全力以赴；竭尽全力
【例句】Every player gave a hundred per cent tonight. 今天晚上所有的运动员都尽了最大的努力。
37. a picture is worth a thousand words 一张图片抵千言
38. bat a thousand非常成功；大获全胜
【例句】So far in her career, she's batting a thousand. [=she has succeeded in everything she has done in her career] 到目前为止，她的事业一帆风顺。
39. never/not in a thousand/million/billion years 根本不可能；绝无可能
【例句】Never in a million years did I think she would quit her job. [=I never thought that she would quit her job] 我从来没想到她会辞职。
40. look/feel like a million dollars/bucks 看上去/感觉好极了
【例句】She looks like a million bucks since she lost all that weight. 她减肥之后看起来好极了。
41. thanks a million非常感谢
【例句】(humorous) “I'll let you wash the dishes today.” “Thanks a million.”“今天我让你洗碗。”“非常感谢。”
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