by和through用作方式方法意思时的区别，举例

by 副词
例句与用法:
1. He hurried by and disappeared in the wood.
他匆匆走过去，消失在森林里。

2. The house by the lake is a restaurant.
湖边的那座房子是家饭店。

3. You must be back by four o'clock.
你务必在4点前回来。

4. He sent me a package by post.
他邮寄给我一个包裹。

5. It is fun eating by stealth without being found.
偷吃而不被人发现很有趣。

through 可作形容词可作副词
形容词through:

1. having finished or arrived at completion
同义词：done, through with

2. (of a route or journey etc.) continuing without requiring stops or changes

副词through:

1. from beginning to end

2. over the whole distance

3. to completion

4. in diameter

5. throughout the entire extent