Triazane
三氮烷
🗣️ 情景例句
To ask if there is some mistake.
想问问是否搞错了。
All things are difficult before they are easy.
凡事都是先难后易。
As if this were not enough to reduce you to tears, your husband arrives, unexpectedly bringing three guests to dinner.
好像这一切还不足以使你急得掉泪，你的丈夫接着回来了，事先没打招呼就带来3个客人吃饭。