Mnng
N-甲基-N'-硝基-N'-亚硝基胍
🗣️ 情景例句
It's been my experience that I agree that yours are of better quality.
根据我的经验来看，你们的产品质量的确较好。
The whole thing was held up about half an hour.
整个事情耽搁了约半小时。
Oh, that's not necessary.
啊，不必这样。