Let the cat out of the bag.  泄漏天機。

　　Lies can never changes fact.  謊言終究是謊言。

　　Lies have short legs.  謊言站不長。

　　Life is but a span.  人生苦短。

　　Life is not all roses.  人生并不是康莊大道。

　　Life without a friend is death.  沒有朋友，雖生猶死。

　　Like a rat in a hole.  甕中之鱉。

　　Like author, like book.  文如其人。

　　Like father, like son.  有其父必有其子。

　　Like for like.  一報還一報。

　　Like knows like.  惺惺相惜。

　　Like mother, like daughter.  有其母必有其女。

　　Like teacher, like pupil.  什么樣的老師教什么樣的學生。

　　Like tree, like fruit.  羊毛出在羊身上。

　　Little things amuse little minds.  小人無大志。

　　Look before you leap.  摸清情況再行動。

　　Love at first sight.  一見鐘情。

　　Love cannot be compelled.  愛情不能強求。

　　Love is blind.  愛情是盲目的。

　　Love is full of trouble.  愛情充滿煩惱。

　　Lookers-on see more than players.  當局者迷，旁觀者清。

　　Losers are always in the wrong.  勝者為王，敗者為寇。

　　Lost time is never found again.  歲月既往，一去不回。

　　Life is half spent before we know what it is.  人過半生，方知天命。

　　It is better to die when life is a disgrace.  寧為玉碎，不為瓦全。