Firming agents
[化] 固化剂
🧩 词语组成解析
vt.& vi. 使坚固（firm的现在分词形式）
n. 间谍；代理人；代理商；特工人员（agent的复数形式）
🗣️ 情景例句
you had some doubts about wanting to go to Michigan.
你对上Michigan大学有些疑虑。
If I had had time,I would have called you.
如果我有时间，我就打电话给你了。
Members of the press weren't allowed into the meeting.
新闻记者不得进入会场。