Photostabilization
耐光性
🗣️ 情景例句
A surprise?
一个惊喜吗？
To read without reflection is like eating without digestion.
学而不思，犹如食而不化。
The deepest holes of all are made for oil, and they go down to as much as 25,000 feet.
在所有洞穴中，为寻找石油所钻的洞是最深的，这些洞可深达25，000英尺。