Siphonapieroidea
蚤总目
🗣️ 情景例句
I'll be OK.
没什么。
I'm sorry. I meant to ask you.
对不起。我本想问你的。
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。