主语从句是句子的主语部分。

A subject clause acts as the subject of a sentence.

主语从句在英语中很常见。

A subject clause is very common in English.

主语从句可以使句子更复杂。

A subject clause can make a sentence more complex.

主语从句通常由连接词引导。

A subject clause is usually introduced by a conjunction.

主语从句可以帮助表达复杂的思想。

A subject clause can help express complex ideas.

引导主语从句同时作从句的主语）由谁主持回忆还没有决定。

Who will preside at the meeting has not been decided yet.

她是否和我们一起去对我而言不重要。（主语从句）

E. g. Whether she goes with us (or not) is not important to me.