fluorescence
n[U]
property that a substance has of emitting light while being exposed to light or some other radiation of a shorter wavelength 荧光. Cf 参看 phosphorescence.
🗣️ 情景例句
How many stamps do I need?
我需要多少邮票?
He is surprised.
他大为惊讶。
Finally, Kunta was thrown into the bottom of the boat and covered with an old smelly cloth.