Ester(ification) number
[化] 酯化值
🧩 词语组成解析
🗣️ 情景例句
Aren't you going to the aerobics class this morning?
今天上午你不是去上有氧运动课吗？
She is wearing an apron.
她穿着围裙。
If I place an order now, when would you be able to ship it?
如果现在下单子，什么时候可以出货？