that 和 which

that 和 which

1。如果我們描述的東西是在一般情況（没有指明某一特定的東西），我們只能用'which'， 不用'that'。

e.g. Our teacher gave us lots of mathematical problems to solve, which will take more than three hours to solve.

老師給了我們很多數學問題做，這將需要三個多小時來解決這些問題。

（備註： 在這句子我們没有指明那一條數學題，所以在這句子中只能用‘which’，不能用‘that’。）

2。如果我們描述東西是具體的，我們就可以用'that'或'which'。

e.g. I don't know how to solve the mathematical problem that/ which my class teacher gave us.

我不知道如何解決這條老師給我們的數學問題。

類別: Grammar 文法

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＜ English Version＞

that and which

1. If we describe something that is general, we can only use 'which'.

e.g. Our teacher gave us lots of mathematical problems to solve, which will take more than three hours to solve.

2. If we describe something that is specific, we can use 'that' or 'which'.

e.g. I don't know how to solve the mathematical problem that/ which my class teacher gave us.