Diphenylmethane
二苯基甲烷
🗣️ 情景例句
are important for the sales of your book.
对于你这本书的销售很重要。
The sacrifice of time is the costliest of all sacrifices.
损失时间是一切损失中代价最大的损失。
What does she have to do?
她得做什么？