1. by accident [偶然；意外地]
【构成】by[通过] + accident[事故；意外]
【例句】I met her by accident at the supermarket. [我在超市偶然遇见了她。]
2. by air [乘飞机]
【构成】by[通过] + air[空气；天空]
【例句】They traveled by air. [他们乘飞机旅行。]
3. by bike [骑自行车]
【构成】by[通过] + bike[自行车]
【例句】He goes to school by bike. [他骑自行车去上学。]
4. by bus [乘公共汽车]
【构成】by[通过] + bus[公共汽车]
【例句】I usually go to work by bus. [我通常乘公共汽车去上班。]
5. by chance [碰巧；偶然]
【构成】by[通过] + chance[机会；偶然]
【例句】I found the book by chance. [我偶然发现了这本书。]
6. by oneself [独自；单独]
【构成】by[通过] + oneself[自己]
【例句】She did the homework by herself. [她自己做的作业。]
7. by the way [顺便说；顺便问一下]
【构成】by[通过] + the[定冠词] + way[道路；方法]
【例句】By the way, how are you? [顺便问一下，你好吗？]
8. by means of [用；依靠]
【构成】by[通过] + means[方法；手段] + of[关于]
【例句】He succeeded by means of hard work. [他依靠努力工作成功了。]
9. by far [到目前为止；…得多]
【构成】by[通过] + far[远]
【例句】This is by far the best book I’ve read. [这是到目前为止我读过的最好的书。]
10. step by step [逐步地；一步一步地]
【构成】step[步骤；脚步] + by[通过] + step[步骤；脚步]
【例句】We should solve the problem step by step. [我们应该逐步解决这个问题。]
11. one by one [一个接一个地]
【构成】one[一个] + by[通过] + one[一个]
【例句】The students came in one by one. [学生们一个接一个地进来。]
12. side by side [并肩；一起]
【构成】side[边；侧面] + by[通过] + side[边；侧面]
【例句】They walked side by side. [他们并肩走着。]
13. little by little [逐渐地；一点一点地]
【构成】little[小的；少的] + by[通过] + little[小的；少的]
【例句】The fog cleared little by little. [雾逐渐散去了。]
14. day by day [一天天；逐日]
【构成】day[天] + by[通过] + day[天]
【例句】Her health is improving day by day. [她的健康状况一天天在好转。]
15. year by year [逐年；一年一年地]
【构成】year[年] + by[通过] + year[年]
【例句】The tree grows taller year by year. [这棵树逐年长高。]
16. by the end of [到…结束时；在…尽头]
【构成】by[通过] + the[定冠词] + end[结束；末端] + of[关于]
【例句】We’ll finish the work by the end of this month. [我们将在本月底完成这项工作。]
17. by and by [不久；很快]
【构成】by[通过] + and[和] + by[通过]
【例句】He’ll come back by and by. [他很快就会回来。]
18. by hand [用手；手工]
【构成】by[通过] + hand[手]
【例句】The sweater was made by hand. [这件毛衣是手工织的。]
19. by mistake [错误地；无意中]
【构成】by[通过] + mistake[错误]
【例句】I took your bag by mistake. [我错拿了你的包。]
20. pass by [经过；路过]
【构成】pass[通过；经过] + by[通过]
【例句】A car passed by just now. [刚才一辆车经过了。]
