1. keep faith with 对…守信用

2. lose faith in 对…失去信心

3. on faith 毫无怀疑地, 依赖地

4. faithful to (=loyal to) 对…忠诚

5. fall into the habit (of) 养成…习惯

6. fall short of (=fail to reach a desired result, standard, etc.) 没达到, 低于 familiar with 熟悉,了解

7. have a fancy for ( =like sth. without the help of reason) (没有道理地)喜欢, 想要

8. take a fancy to (=become fond of) 喜欢

9. by far 远, 非常 (与比较级或最高级连用)

10. far from 远远不是

11. far from 非但不…(而且)

12. in fashion(=stylish, most modern)时兴,流行

13. after the fashion (of) 依照…

14. find fault with(=complain about; criticize)找毛病，对…吹毛求疵 at fault (=in the wrong, blamable)有错

15. in favour of 赞成

16. be in favour with 受宠, 受偏爱;

17. out of favour with 失宠, 不受宠

18. in one’s favour(=to one’s advantage)对.有利

19. (be) favourable to(=advantageous)有利的

20. fear for (=be afraid for the safety of sb. or sth.) 为…担心