低空飛行的用法和樣例：
例句
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飛機起飛后，在城市上空低空飛行，接著慢慢地上升，然后飛機突然飛回機場。
After taking off we were flying low over city and slowly gaining height when the plane suddenly flew back to the airport. -
飛機起飛后，正在城市上空作低空飛行，并且慢慢逐步升高。
After taken off, we were flying low over the city and slowly gaining height.
