Valerolactam
戊内酰胺
🗣️ 情景例句
Summer is my favorite season; I love the heat.
夏季是我最喜欢的季节，我喜欢热。
To convert defeat into victoty.
反败为胜。
Yes, do please. That's a good idea.
对，就谈这个。那是一个好主意。