0 to make the low, interrupted noise that a chicken makes -- （鸡）咯咯叫
to cluck in disapproval/amazement 发出不满的／惊异的啧啧声
She shakes her head, smiles, and clucks her tongue. 她摇摇头，笑了笑，咂咂舌。
The attendants clucked and fussed over passengers. 乘务员对乘客咋咋呼呼、大惊小怪。
We see this readily, for example, in his casual attribution of joy to the rhythmically clucking hen.
In fact, even a duckling raised by a farmyard hen goes" quack", rather than" cluck", maybe occasioning some degree of confusion in the hen house!
Why must the cluck necessarily indicate "joy," and not, say, relief, or any number of other possible emotions?
He makes a sort of clucking noise of disagreement.
We have heard tonight the clucking noises of distaste for the worst excesses of the régime.
They have clucked sympathetically, while the tax rate doubled.
The song is based upon different twangy, up-and-down vocal hooks and has banjos clucking alongside new wave electric guitars.
Quiet, low-pitched groans and clucks are emitted from their roost cavities.
