Perhydroanthracene
蒽烷, 全氢化蒽
🗣️ 情景例句
I'm ... very proud of you.
我很……以你为荣。
This man always has clean floors and wet feet.
这个男人常常弄湿了脚刷洗地板。
Why don't you come a little earlier? About a quarter to.OK?
45分左右来，好吗？