Idfg
abbr. intracavity CW difference frequency generation 内腔连续波差频振荡
🗣️ 情景例句
Have you ever been to Nanjing?
你曾去过南京吗？
The writer has a unique style.
这个作家有独特的风格。
Do you live near here?
你住的离这儿近吗？