Cand
[化] 萤石
🗣️ 情景例句
on the school board,
在联合校董会中
Oh my god!
我的妈呀！
it takes much less energy to accelerate to that 1.5 miles per second than it does on Earth.
在月球上加速到每秒1。5英里比在地球上所用能源要少得多。