轻型飞机飞行时起落架不一定缩回.The undercarriage on light aircraft does not always retract in flight.男孩看见那条蛇吓得猛地缩回.The boy started back in fear when he saw the snake.但是现在要缩回来当然为时已晚.But it was too late then, of course, to back out....
These chaps know their stuff after seven years of war.7年的战争过后，这些家伙都成了作战行家。These chaps know what side their bread's buttered on.这些家伙知道怎样做对他们有利。Hard luck, chaps, but don't despair too much.真不走运，伙计们，不过别太灰心。...