Polychlorization
[化] 多氯化反应
🗣️ 情景例句
If you're not sure, then the answer should probably be no.
如果你不确定，那么答案可能就是“不”了。
Nothing for nothing.
不费力气，一无所得。
'I've been coming up here night after night for weeks now.
“好几个星期了，我天天夜里到钟楼上来。