Ditolyl
联甲苯
🗣️ 情景例句
It's us, Susan.
是我们， Susan。
I have some shirts to send to the laundry.
我有一些衬衫送到洗衣店了。
I'll have to stay at the office.I don't know when I'll finish.
我不得不留在办公室，不知道什么时候才能结束。