Flaccidity
n. 软弱, 没气力
✅ 同义词
📖 牛津释义
flaccidity
n[U].
🗣️ 情景例句
I can play.
我也能玩。
The morning sun never lasts a day.
好景不常。
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%。