Dichlorodinitromethane
二氯二硝基甲烷
🗣️ 情景例句
I hear the exams will be very tough.
我听说考试挺难的。
An old physician,and a young lawyer.
医生老的好，律师年轻的好。
A piece of cheese.A loaf of bread.A bar of soap.
一块乳酪、一块面包、一块肥皂、