Hexachloropropylene
[建] 六氯丙烯
🗣️ 情景例句
Don't mention it. What would you like to drink?
别客气，想喝点什么？
So far, so good.
到目前为止还好。
One evening, however, the lamb was missing.
可是，一天晚上，那只小羔羊失踪了。