今天的课程重点讲述了作为动词性名词的动名词。

Today's lesson focused on the ___gerund as a verbal noun.

识别句子中的动名词有助于理解其结构。

Identifying the ___gerund in a sentence can help with understanding its structure.

动名词可以充当动词的主语或宾语。

A ___gerund can function as the subject or object of a verb.