Assaying
[化] 試金; 分析礦物; 測(cè)定; 分析; 鑒定
??? 情景例句
It was not until yesterday that I noticed it.
我一直到昨天才注意到它。
What time are you going?
你什么時(shí)候走？
Excuse the mess, Sam.This room's very untidy.
屋子很亂，請(qǐng)?jiān)彛_姆。