Bizad
[美俚]商业管理科(学生)
🗣️ 情景例句
Is a letter of credit OK?
用信用卡可以吗？
Nothing seek, nothing find.
无所求，则无所获。
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%。