Tetrasulfide
四硫化物
🗣️ 情景例句
Ok, when you put it that way, I have to agree.
好的，你这样说的话，我也只得同意。
Promise little but do much.
少许愿，多做事。
and a very firm hand must be employed in the early stages.
因此开始阶段需要有一位强有力的老手。