Microcycas
小苏铁属
🗣️ 情景例句
I'm so thankful to all of you.
非常感谢你们诸位。
They used to live there, didn't they?
他们过去住在哪里，不是吗？
it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit!
因此，从月球到地球的25万英里所消耗的能量要比从地球表面进入地球轨道的200英里所耗能量少97%。