If you've been with someone for this length of time you'll have to ask yourself what reservations have I got?
如果你和某人生活了这么长时间,你得问一下自己,你对这段婚姻满意吗?
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%。