🧩 词语组成解析
[计] 三
n. 乍得\\n[计] 孔屑
🗣️ 情景例句
Here's my visa card.
这是我的visa卡。
I have so much to do after I retire.
我在退休后有许多事要做。
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%。