Lapis albus
[化] 天然氟硅酸钙\\n[医] 白石(硅氟化钙)
🧩 词语组成解析
[医] 石
铅白(颜料)
🗣️ 情景例句
Oh, let's see. It'll be about 3:30 before we have anybody free.
哦，让我想想。大概要到3：30我们才有空。
We must make it clear from the very beginning that competitive quotations are acceptable.
必须一开始就讲清的是，有竞争力的报价可以接受。
good-tempered elephant who will give many years of loyal service.
脾气温顺、能忠实为人服务多年的大象。