Xn
abbr. 无新股票权（ex new）
🗣️ 情景例句
Could we make it tomorrow at nine?
明天9点怎么样？
This dress is made of silk,isn't it?
这件衣服用丝绸做的，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%。