Actinity
[电] 光化度
🗣️ 情景例句
I'm thrilled for you, Grandpa.
我真为你兴奋， 爷爷。
It was so cold the car wouldn't start.
天冷得汽车的引擎都无法发动了。
Then he said something and I understood it.
接着，他说了点什么，这回我听懂了。