常見例句雙語例句With the helicopter moving backwards at medium pace, the helicopter will be aileron-rolled twice, each roll being clearly delineated by 4 hesitation points.直升機(jī)中速后退飛行的過程中做兩個四位橫滾，橫滾的四個停頓點(diǎn)要清楚。 返回 roll hesitation