Perhydroanthracene
蒽烷, 全氢化蒽
🗣️ 情景例句
This is a good deal: buy 1, get 1 free.
这可是个好买卖：买一送一。
You can't count on the weather being fine.
你不能指望天晴。
Yes, here it is.
是的，在这儿。