Idfg
abbr. intracavity CW difference frequency generation 内腔连续波差频振荡
🗣️ 情景例句
He's a good father.
他是个好父亲。
Speaking without thinking is shooting without taking aim.
讲话不思考犹如射击不对准目标。
Greetings, learned judge! I do not envy you your job. This is a most troublesome case.
您好，博学的法官！我并不羡慕您的职业。这是一个最麻烦的案子。