Gias
(gia 的复数) abbr. 美国宝石学会（Gemmological Institute of America）
🗣️ 情景例句
His popularity has soared thanks largely to his TV appearances.
由于经常出现在电视上，他的知名度日趋上升。
We tried in vain to make him change his mind.
我们试图使他改变他的主意，但白费力气。
because balloons can be a great danger to aircraft.
因为气球有可能给飞机造成极大的危险。