Return-to-zero
[计] 归零制
🧩 词语组成解析
to
[tu,tə]
prep. 向，朝着;到;关于;属于;
adv. 朝一个方向的;到某种状态;关闭;
zero
['zɪro]
n. （数字）0;零度;
adj. 全无的，没有的;
v. . 聚焦，集中;
🗣️ 情景例句
You must be hungry by now.
你现在一定饿了。
We need skilled electricians.
我们需要有技术的电工。
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%。