Sulfonating
磺化
🗣️ 情景例句
I hear that you have a Italy Symphony Orchestra concert on the 15th evening.
听说15号晚上意大利交响乐团要在贵院演奏。
I've never heard that piece before.Who wrote it?
我从来没听过那乐章，那是谁写的？
He was rather elderly with grey hair and clear blue eyes.
他上了年纪，有着灰白的头发和明亮的蓝眼睛。