Petn
[医] 四硝酸戊赤藓醇[酯], 四硝酸戊四醇[酯], 长效硝酸甘油
🗣️ 情景例句
Thank you for a most enjoyable evening.
谢谢你举办这样一个极其快乐的晚会。
I learned grammar this afternoon.
我今天下午学语法。
OK. While you're doing that I'll go and get some water.
好的。你系小树，我去弄点水来。