adv.无声地,静静地;
例句:
Stephen seated himself noiselessly before the princely presence.
斯蒂芬一声不响地在亲王那幅仪表堂堂的肖像前面坐下来.
I shut the door noiselessly behind me.
我把门轻轻地带上。
The cat walked noiselessly through the grass.
猫不声不响地穿过了草坪.