Horizons
n. 地平线( horizon的复数形式 ); 范围; 界限; 眼界
🗣️ 情景例句
Thank you.
谢谢。
From a little spark may burst a mighty flame.
星星之火可以燎原。
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%。