Dithione
二硫酮
🗣️ 情景例句
Do we have to pre-book tours, or can we get them on site?
我们必须预定行程， 还是到那个地方再说？
Thank you for sending it to me.
谢谢你把它送给我。
Oh dear! What's wrong?
噢，亲爱的！怎么啦？