opposers

The proposal passed easily because there was no serious opposer at the meeting.

用法提示：opposer 是名词，指“反对者”，此处用在 there be 结构中作主语。

As the main opposer of the plan, she explained her reasons in detail.

用法提示：opposer 是名词，指“反对者”，此处作介词 as 的宾语。

The committee expected many opposers, but only one person raised a hand.

用法提示：opposers 是 opposer 的复数形式，表示“反对者们”，此处作动词 expected 的宾语。