Naphthophenanthrene
二苯并蒽
🗣️ 情景例句
All my bags are checked in. I guess I'm all set to go.
我的行李都检查完了，看来我可以走了。
Better safe than sorry.
小心不出大错。
He has deliberately chosen to lead the life he leads and is fully aware of the consequences.
他是故意在选择过那种生活的，并完全清楚以这种方式生活的后果。