Spectroradiometry
[电] 分光辐射学
🗣️ 情景例句
Isn't it exciting, Grandpa?
真令人兴奋， 是吗， 爷爷？
One foot is better than two crutches.
一只脚胜过两根拐杖。
and content in the thought that what was possible has been done.
想到能做的事都做了，也就坦然了。