习语一般指那些常用在一起，具有特定形式的词组，其蕴含的意义往往不能从词组中单个词的意思推测而得。通常包括成语、俗语、格言、歇后语、谚语、俚语、行话等。以下这篇

　　Idleness is the root of all evil. 懒惰是万恶之源

　　If a man once fall, all will tread on him. 人倒众人踩

　　If it were not for hope, the heart would break. 人若无希望，心碎肝肠断

　　If we dream, everything is possible. 敢于梦想，一切都将成为可能。

　　If you run after two hares, you will catch neither. 同时追两兔，全都抓不住

　　Ill news flies apace. 恶事传千里

　　In for a penny, in for a pound. 一不做，二不休

　　In the deepest water is the best fishing. 水深好钓鱼

　　In the end, things will mend. 车到山前必有路

　　It is a foolish sheep that makes the wolf his confessor. 蠢羊才向狼忏悔

　　It is better to be alone than in bad company. 宁可孤独，不交恶友

　　It is better to do well than to say well. 与其夸夸其谈，不如埋头苦干

　　It is easier to get money than to keep it.. 挣钱容易，积钱难

　　It is good fishing in troubled waters. 混水好摸鱼

　　It is never too late to learn. 活到老，学到老

　　It is never too late to mend. 改过不嫌晚

　　It is no use crying over spilt milk. 牛奶打泼，哭也无用（意同：覆水难收）

　　It is the first step that is troublesome. 万事起头难

　　It is too late to shut the stable door after the horse has been stolen. 失马锁慨，为时已晚

　　It never rains but it pours. 不下则已，一下倾盆

　　It takes two to make a quarrel. 一个巴掌拍不响

　　Jack of all trades, master of none. 样样皆通，样样稀松

　　Joy surfeited turns to sorrow. 乐极生悲

　　Judge not a book by its cover. 评价一本书，不能凭封面

　　Judge not from appearance. 人不可貌相