Cyclodiene
n. 环戊二烯类杀虫剂
🗣️ 情景例句
This job is hard work.
这活儿太累人了。
This part of the country is very heavily populated.
这个国家这一部分人口很密集。
I don't know his number. Did you write it down?
我不知道他的电话号码。你记下来了吗？