Van helmont's mirror
[医] 范黑耳蒙提氏镜, 膈中心腱
🧩 词语组成解析
van
[væn]
n. 先锋;厢式货车;增值网;先驱，前驱，领袖，领导人;
vt. 用车搬运;
prep. 〈外〉同“from”;
🗣️ 情景例句
Could you please say it again?
你能重复一下吗？
The great and the little have need one of another.
伟大与渺小相得益彰。
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%。