A low, indistinct, continuous sound.

低微不清之声(如流水声、树叶之沙沙声)。

A complaint in a low, muttering tone; grumble.

低微含糊之怨言；不平之鸣。

Abnormal sound of the heart heard through a stethoscope.

【医】心脏杂音。

To make a low, continued noise like the hum of bees; speak in a low vice.

作低而连续之声(有如蜂之嗡嗡声)；低语。

To mutter in discontent; grumble.

发怨言；鸣不平。

To utter complainingly or a low voice; grumble.

低声抱怨；鸣不平。