Thiophanthrene
萘并[2, 3-b]噻吩
🗣️ 情景例句
Is it possible that we forgot to buy cinnamon?
是不是我们忘了买肉桂？
Nothing is difficult to the man who will try.
世上无难事，只要人肯试。
How's that?
这样子可以吧。