Pionic
a. π介子的
🗣️ 情景例句
Oh, you're right.
哦， 说得对。
I hope you can have an enjoyable time on your trip.
我希望你的旅途有个愉快的时光。
When you come to think about it, there are only four ways you can deal with rubbish: dump it, burn it, turn it into something you can use again, attempt to produce less of it.
倾倒、焚烧、把垃圾变成再生材料或试图少产生一些垃圾。