clack

名词 clack:

1. a sharp abrupt noise as if two objects hit together; may be repeated
   同义词：clap
2. a simple valve with a hinge on one side; allows fluid to flow in only one direction
   同义词：clack valve, clapper valve

动词 clack:

1. make a rattling sound
   同义词：clatter, brattle
2. make a clucking sounds, characteristic of hens
   同义词：cluck, click
3. speak (about unimportant matters) rapidly and incessantly
   同义词：chatter, piffle, palaver, prate, tittle-tattle, twaddle, maunder, prattle, blab, gibber, tattle, blabber, gabble

1. He clack the nut open.
   他把坚果敲开。

clack

v.（动词）
clacked,clack.ing,clacks
v.intr.（不及物动词）
To make an abrupt, sharp sound, as in the collision of two hard surfaces.
噼啪作响：发出短促、尖锐的声音，如两个坚硬表面碰撞时的声音
To chatter thoughtlessly or at length.
唠叨，喋喋不休：缺少考虑地或冗长地说话
To cackle or cluck, as a hen.
咯咯地叫，象母鸡一样
v.tr.（及物动词）
To cause to make an abrupt, sharp sound.
使发出短促、尖锐的声音
n.（名词）
A clacking sound:
噼啪的响声：
例句：
the clack of an old-fashioned typewriter.
一台老式打字机的噼啪响声

Something that makes a clacking sound.
发出噼啪响声的物件
Thoughtless, prolonged talk; chatter.
喋喋不休：愚蠢的、冗长的谈话；唠叨

来源：
Middle English clakken
中古英语 clakken
from Old Norse klaka
源自 古斯堪的纳维亚语 klaka
[of imitative origin]
[拟声词]

【引伸】
clack.er
n.（名词）