strict
1. strict是形容词,意为“严格的,严厉的”,可作表语也可作定语。如:
Our head teacher is very strict, but we still need many strict rules.
我们的班主任非常严格,但是我们还需要许多严格的制度。
2. 我们常见短语be strict with sb.,意为“对某人严格要求”,以及be strict in (doing) sth., 意为“对(做)某事严格要求”。如:
Mr. Smith is very strict with his children.
史密斯先生对他的孩子们要求十分严格。
We should be strict in (doing) our work.
对工作我们应该严格要求。

look up
1. 表示“(在词典、参考书等中)查阅……”。若宾语是名词,常放在look up之后。若宾语是代词,则要放在look up之间。如:
It is a good habit to look up new words in a dictionary.
在词典里查生词是一个良好的习惯。
If you forget my number, you can look it up in the phone book.
如果你忘了我的号码,你可以在电话薄里查找。
2. 表示“向上看”。如: