Gias
(gia 的复数) abbr. 美国宝石学会（Gemmological Institute of America）
🗣️ 情景例句
OK, Robbie, maybe you should watch him. Robbie
也许你得看着他点。
This man yells directions and gets sunburned.
这个人一边晒着太阳,一边在大声下达指令。
Duck your head as you go through the door there.
经过那儿的门时，请将头放低。