Thg
abbr. Third Harmonic Generation 第三谐波生成
🗣️ 情景例句
I majored in economic and trade English.
我主修的是经贸英语。
A book that remains shut is but a block.
有书闭卷不阅读，无异是一块木头。
We are in the same boat.
我们的处境相同。