Pentamethylated
五甲基代的
🗣️ 情景例句
I have to turn off the lights,
我得关掉灯，
Congratulations on your happy new year.
我恭喜你新年快乐。
But I'm determined to enjoy myself as much as possible, even though I can't see everything.
但是尽管我不可能什么都看，我都决定要玩个痛快！