Retinaldehyde
视黄醛
🗣️ 情景例句
I want to thank you for placing such a big order with us. You won't be disappointed.
谢谢你下了这么大的订单，你一定不会失望的。
I'm heart-broken.
我失恋了。
we can start any time you're ready.
只要你准备好了，我们随时可以开始。