Tetranitro
四硝基
🗣️ 情景例句
We are.
我们呀。
An honest man's word is as good as his bond.
诚实人的话像他的契约一样靠得住。
I have to wash all the plates and things after meals, and do a lot of work in the garden.
饭后我得洗全部盘子和其他东西，还要在花园里干很多活。