Episulfide
环硫化物
🗣️ 情景例句
Is cash all right?
现金可以吗？
He went to grade school in New york and high school in Cicargo.
他在纽约上小学并在Cicargo上高中。
Tomorrow evening they will be singing at the Workers' Club.
明晚他们将在工人俱乐部演出。