Nonradiative
非辐射的, 不辐射的
🗣️ 情景例句
my grandfather is
我爷爷
Friends are like fiddle-strings,they must not be screwed too tight.
朋友有如琴弦，不能上的太紧。
They arrived early on a Tuesday morning.
他们是在一个星期二的清早到工厂的。