Para-dihydroxystearic acid
[化] 聚二羟基硬脂酸
🧩 词语组成解析
[经] 帕拉
🗣️ 情景例句
I made another lunch date for today
我和别人约好共进午餐，，
Generally speaking, a contract cannot be changed after it has been signed by both parties.
一般来讲，合同一经双方签订就不得更改。
Since then, they have been trying to find out how the fire began.
从那时起，他们一直试图找出起火的原因。