Alkanethiols
烷硫醇
🗣️ 情景例句
How much are the dues?
会费多少？
It was a terrible experience,and I won't forget it.
它是可怕的经验，我不会忘记它。
I suggest that you did not catch the 8 o'clock train,
您乘的不是8点钟的火车，