Millimicron
n. 毫微米\\n[医] 毫微米
🗣️ 情景例句
What did I do with them?
我把它们放在哪儿了？
A journey of a thousand miles begains with a single step.
千里之行，始于足下。
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%。