“发出”造句

在1,000英尺的高度飞行时，他听到旋翼发出一种奇怪的噪音。
Flying at 1,000 ft. he heard a peculiar noise from the rotors.

卧室门上发出一声沉重的撞击声。
There was a heavy thudding noise against the bedroom door.

围栏倒下时发出了断裂的声音。
There was a splintering sound as the railing gave way.

• #发出