latch 核心詞議：
vi. 占有，抓住；閉鎖
vt. 閂上；糾纏住某人
latch 基本解釋
n. 門閂；彈簧鎖
vt.& vi. 閂上；用碰鎖鎖上（門等）；抓住，占有
速記方法
速記技巧
詞源記憶法
可能來自PIE*slagw，抓住，詞源同lemma，syllable，epilepsy.用于指門閂，插銷。
知識擴展
短語動詞
短語動詞 習(xí)語 latch on latch onto 1纏住（或抓住）…不放；對…產(chǎn)生濃厚興趣 2依附（于）；附著（于） 查看更多 以下資源來自牛津詞典 latch on (to sth) latch onto sth (informal) 理解，懂得，領(lǐng)會（想法或某人的話） to understand an idea or what sb is saying It was a difficult concept to grasp, but I soon latched on. 那是個難以弄明白的概念，但我很快就理解了。 latch on (to sb/sth) latch onto sb/sth (informal) 1 變得依附于 to become attached to sb/sth antibodies that latch onto germs 依附于細(xì)菌的抗體 2 糾纏，纏住（某人） to join sb and stay in their company, especially when they would prefer you not to be with them 3 對…產(chǎn)生濃厚的興趣 to develop a strong interest in sth She always latches on to the latest craze. 她總是對最新時尚有濃厚的興趣。 收起 n. on the latch (BrE) 關(guān)著但未鎖上 closed but not locked Can you leave the door on the latch so I can get in? 你別鎖門好不好？我好進(jìn)來。
latch 變化形式
復(fù)數(shù)： latches
第三人稱單數(shù)： latches
過去式： latched
過去分詞： latched
現(xiàn)在分詞： latching
易混淆的單詞： Latch
中文詞源：
latch 門閂，插銷
可能來自PIE*slagw,抓住，詞源同lemma,syllable,epilepsy.用于指門閂，插銷。
latch
精選例句
1、 He lifted the latch and opened the door.
他拉起門閂開了門。
2、 You left the latch off the gate and the dog escaped.
你沒插門閂，狗跑了。
常見考點例句：
- It has no latch , and doesn 't switch the ipad screen on and off .
- 它沒有碰鎖，不能開關(guān)ipad2的顯示屏。
- Through a series of experiments in ferrets , he isolated a strain with four mutations that helped the virus latch on to and infect cells in the throat .
- 通過一系列在雪貂身上的實驗，他分離出一個具有四個突變的毒株，它們有助于病毒抓住并感染喉部細(xì)胞。
- Dendritic cells normally latch on to bacteria and viruses before migrating to the lymph nodes , where they present the alien material to the immune system 's " killer " t-cells that seek and destroy such invaders .
- 胞在入淋巴之前通常抓住菌和病毒，在淋巴它己物提供免疫系的“手”t胞，t胞找并入侵者。