主语从句是句子的主语部分。

A subject clause acts as the subject of a sentence.

主语是句子的核心部分。

The subject is the core part of a sentence.

主语可以是一个名词或代词。

The subject can be a noun or a pronoun.

你需要找到句子的主语。

You need to find the subject of the sentence.

主语从句在英语中很常见。

A subject clause is very common in English.

单数主语需要用单数动词。

A singular subject requires a singular verb.

在这个句子中，猫是主语。

In this sentence, cat is the subject.

主语从句可以使句子更复杂。

A subject clause can make a sentence more complex.

主语通常是句子的第一个词。

The subject is usually the first word in a sentence.

谓语部分描述了主语的动作。

The predicate part describes the action of the subject.