Cosmocercidae
丽尾科
🗣️ 情景例句
These knives are guaranteed never to go blunt.
这些刀保证不会变钝。
As well be hanged for a sheep as for a lamb.
偷大偷小都是贼。
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%。