Ester(ification) number
[化] 酯化值
🧩 词语组成解析
🗣️ 情景例句
I didn't have that when Richard and Susan were born.
在Richard和Susan出生时我可没有人帮忙。
Which one is the longest river in China?
中国哪条河流最长？
This note is only a reminder.
谨此提请注意。