好词典

latches

UK //ˈlætʃɪz//US //ˈlætʃɪz//

词源

源自古英语'læccan'(抓住),与古诺尔斯语'laka'(拉)同源,最初表示抓取或握持的动作,后引申为固定装置。

noun

❶ 指门或窗上用来固定关闭状态的金属装置,通常由可移动的钩子或插销构成,需要手动操作才能打开。

“She lifted the latch and pushed the door open.”

(她抬起门闩,推开了门。)

“The old gate had a rusty latch that creaked loudly.”

(旧大门上的门闩生锈了,发出刺耳的吱呀声。)

❶ 在电子工程中,指一种能保持其输出状态的简单存储电路,常用于数字系统中临时保存信号。

“The D latch stores the input value when the clock signal is high.”

(当时钟信号为高电平时,D锁存器会存储输入值。)

“We need to add a latch circuit to hold the processor's state.”

(我们需要添加锁存器电路来保持处理器状态。)

同义词:catch, bolt, fastener, hasp, lock

verb

❶ 用门闩固定某物,使其保持关闭或连接状态,通常需要施加一定力量才能打开。

“He latched the window before the storm arrived.”

(他在暴风雨来临前闩好了窗户。)

“The suitcase won't stay closed unless you latch it properly.”

(除非你正确扣上搭扣,否则行李箱关不牢。)

❶ 比喻紧紧抓住或依附某事物,常带有不愿放手或持续关注的意味。

“The child latched onto her mother's leg and refused to let go.”

(孩子紧紧抱住妈妈的腿不肯松开。)

“The media quickly latched onto the celebrity scandal.”

(媒体迅速抓住名人丑闻不放。)

同义词:fasten, secure, attach, grip, cling

常见短语

on the latch — 指门未完全锁住,仅用门闩轻轻扣住的状态,通常表示可以轻松推门进入。

“Leave the back door on the latch so the cat can come in.”

(后门留着别锁死,这样猫可以进来。)

latch onto — 指紧紧抓住某物或强烈认同某个想法,常带有执着或依附的意味。

“The young artist latched onto the mentor's every word.”

(这位年轻艺术家对导师的每句话都奉若圭臬。)