Mercaptal
缩硫醛
🗣️ 情景例句
with photographs of my family, I cried.
连同家人照片时，我哭了。
I haven't seen you for a long time.
好久没有见到你了。
We'd better take it up with them, in that case.
如果是那样，我们最好向他们提出来。