Corning
[电] 细粒透镜
🗣️ 情景例句
These knives are guaranteed never to go blunt.
这些刀保证不会变钝。
The joy of the heart makes the face merry.
喜形于色。
Walking up and down the stairs would beat any exercise machine.
上下楼梯可比什么健身器都要好。