how引导并列宾语从句的用法疑惑

麻烦老师分析一下这个句子

how a rattlesnake injects its toxin using its fangs是做动词describes的宾语

2 and a male platypus delivers its toxin using spurs on its ankles是和前面并列做宾语吗?但是为什么后面不使用how来引导呢?

3 两个现在分词短语都是作状语吗?using its fangs /  using spurs on its ankles

To give examples, the author describes how a rattlesnake injects its toxin using its fangs, and a male platypus delivers its toxin using spurs on its ankles.

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  • la   提出于 2023-07-06 10:44