Tosate
对甲苯磺酸基团
🗣️ 情景例句
Away from the telephones and account books.
远离电话和帐簿。
It took him a long time to make up his mind.
下决心花了他很长时间。
Not wanting to frighten the poor man,
理查兹夫人不想吓唬这个可怜人，