Gemmologist
n. 宝石学家
🗣️ 情景例句
We are lucky to have you, Marilyn.
拥有你是我们的幸运， Marilyn。
We'd like to know your availability and conditions of sale of this line.
我们想了解一下你方在这方面的供货能力及销售条件。
It's about four hundred yards down this street.
城堡就在这条街上，（离这儿）400码左右。