A joke never gains an enemy but loses a friend.戏谑不能化敌为友，只能使人失去朋友。 

    A leopard cannot change its spots.积习难改。 

    A liar is not believed when he speaks the truth说谎者即使讲真话也没人相信。 

    A little body often harbors a great soul.浓缩的都是精品。 

    A little knowledge is a dangerous thing.一知半解，自欺欺人。 

    A little pot is soon hot.狗肚子盛不得四两油。 

    All are brave when the enemy flies.敌人逃窜时，人人都成了勇士。 

    All good things come to an end.天下没有不散的筵席。 

    All rivers run into sea.海纳百川。

    All roads lead to Rome.条条大路通罗马。 

    All that ends well is well.结果好，就一切都好。 

    All that glitters is not gold.闪光的不一定都是金子。
 
    All things are difficult before they are easy.凡事总是由难而易。 

    All work and no play makes Jack a dull boy.只会用功不玩耍，聪明孩子也变傻。 

    A man becomes learned by asking questions.不耻下问才能有学问。 

    A man can do no more than he can.凡事都应量力而行。 

    A man cannot spin and reel at the same time.一心不能二用。 

    A man is known by his friends.什么人交什么朋友。 

    A man of words and not of deeds is like a garden full of weeds.光说空话不做事，犹如花园光长刺。 

    A man without money is no man at all一分钱难倒英雄汉。 

    A merry heart goes all the way.心旷神怡，事事顺利。 

    A miss is as good as a mile. 失之毫厘，差之千里。 liuxuepaper.com