Descender line
[计] 下降线
🧩 词语组成解析
[计] 后继
line
[laɪn]
n. 线条;排;行列;界线;
vt. 排队;用线标出;沿…排列成行;给…安衬里;
vi. 形成一层;排队;击出平直球;
🗣️ 情景例句
Help me get this stuff out of the car.
帮我将这些东西拿下车子。
What's your nationality?Are you a Chinese?
你的国籍是什么？你是中国人?
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%。