before单词相关例句：
Don't count your chicken before they are hatched. 不要过早乐观。
Don't count your chickens before they are hatched. 蛋未孵，别先数鸡。
Cast not your pearls before swine. 明珠莫投暗。
Rain before seven; fine before eleven. 雨过天晴。
Laugh before breakfast you'll cry before supper. 乐极生悲。
Laugh before breakfast and you'll cry before supper. 笑得早也会哭得早。
One hour's sleep before midnight is worth three after. 午夜前睡一小时抵得上午夜后睡三小时。
The golden age is before us, not behind us. 黄金时代是在我们前面而不在我们背后.
Learn to walk before you run. 循序渐进。
If each would sweep before his own door, we should have a clean city (or street). 众擎易举。
in单词相关例句：
We shall defend our island, whatever the cost may be . We shall fight on the beaches, we shall fight on the landing-grounds, we shall fight in the fields and in the streets, we shall fight in the hills; we shall never surrender.——Winston Churchill British prime minister 无论需要付出多大的代价，我们也要捍卫我们的岛国。我们要战斗在海滩，我们要战斗在登陆地带，我们要战斗在田野、街巷，我们要战斗在山冈、丘陵，我们决不投降。英国首相 丘吉尔， W。
We should put aside and postpone all other reforms; that we  have but one task-----the istruction of the people, the diffusion of education, the ecourgement of science----on that day a great step will have then been taken in our rgenerion.Leon Gambetta, French educator——我 们应该把一切改革先放下。我们只有 一项任务，就是教育人民，普及知识、倡导科学。这一天到来之时，便是我们振国兴邦之日。法国教育  爱甘必大  L
Smokers and nonsmokers can not be equally free in the same railway carriage.——Ceorge Bernard shw. British dramatist.  吸烟者和不吸烟者在同一节车厢里无法享受同样的自由。英国剧作家 肖伯纳，.G.  
A good neighbour is better than a bother in the next village. 远亲不如近邻。
I want to bring out the secrets of nature and apply them for the happiness of man . I don't know of any better service to offer for the short time we are in the world .(Thomas Edison , American inventor)  我想揭示大自然的秘密，用来造福人类。我认为，在我们的短暂一生中，最好的贡献莫过于此了。 (美国发明家 爱迪生. T.)
SUCCESS——Achievement provides the only real pleasure in life .( Thomas Edison , American inventor)  有所成就是人生唯一的真正乐趣。( 美国发明家 爱迪生. T. )
Music is the only language in which you cannot  say a mean or sarcastic thing.John Erskine, American educator——音乐是唯一不能用及表达卑鄙的或讽刺的事物的语言。美国教育家  厄斯金  J
We are in bondage to the law in order that we may be free. 我们受法律约束，为的是可以自由。
It is conflict and not unquestioning agreement that deeps freedom alive. In a free country there will always be coflicting ideas, and this is a source of strength.——Thomas Jefferson. American president  使自由保持活力是冲突而不是绝对的一致。在一个自由的国家里总会有各种相冲突的思想，而这正是力量的源泉。美国总统杰斐逊 .T.  
Economy is in itself a source of great revenue.——Lucius Annaeus Seneca, Ancient Roman Philosopher  节约本身就是最大的收入 .罗马哲学家 西尼加，L.A.