The timing of the gun was precisely synchronized with the turning of the plane’s propeller.风门的调速与飞机螺旋桨的转动精确同步。A fairing fitted over the hub of the propeller in some aircraft.螺桨毂盖,机头整流罩某些飞机上装于螺旋桨叶毂上的整流罩....the propeller s...
She heard the priest's familiar, flat footfall on the staircase.她听到楼梯上传来牧师那熟悉的单调脚步声。They walked down the staircase together.他们一起下了楼梯。He followed her up a rickety staircase to a squalid bedsit...他跟着她上了一段摇摇晃晃的楼梯,来到了一间...