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🗣️ 情景例句
Don't be silly, Harry.
别闹了， Harry。
One cannot put back the clock.
光阴一去不复返。
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%。