Vanillylidene
亚香草基, 4-羟-3-甲氧苯亚甲基
🗣️ 情景例句
No ... thank you.
不……谢谢你。
A liar is worse than a thief.
撒谎比偷窃更可恶。
The airport was built years ago, but for some reason it could not be used then.
机场是许多年前建的，但由于某种原因当时未能启用。