look down on单词相关例句：

It is wrong to look down on blind people.

瞧不起盲人是不对的。

upon单词相关例句：
All progress is based upon a universal innate desire on the part of every organism to live beyond its income.——Samuel Butler, British writer世人莫不怀着一种与生俱来的欲望，要把支出超过收入，此乃一切进步的动力。英国作家 勃特勒. S.
In a complex world ,to insist upon simplicity is  foolish. Richard Wlokomir, Amercan writer——在复杂的世界上，坚持单纯是愚蠢的。美国作家  沃克摹，Ｒ。
A good book is a best friend who never turns his back upon us. 一本好书，莫逆之交。
Errors, like straws, upon the surface flow; he who would search for pearls must dive below. 错误像稻草，漂浮在水面。欲觅珍珠者，须往水下潜。
Fortune smiles upon the brave and frowns upon the coward. 幸运喜欢勇敢的人，而不喜欢怯懦的人。
Knowledge is of two kinds, we know a subject ourselves, or we know where we can find information upon it. 知识有两种，一种是我们自己知道的东西，另一种是知道哪里可以找到有关的资料。
The secret of a good momory is attention, and attention to a subject depends upon our interest in it. -- We rarely forget that which has made a deep impression on our minds. 记忆力好的秘密在于专心，而对于一个问题的专心取决于对这个问题的兴趣。在我们心上留下深刻印象的东西，我们是不大会忘记的。
One woe doth tread upon another's heels. 祸不单行。
Great winds blow upon high hills. 树大招风。
Let not the sun go down upon thy wrath. 日落之前，平息你的怒火吧。