knocking
knocking是什么意思，
knocking怎么讀
語(yǔ)音:
英音
[n?k??]
美音 [n?k??]
n. 爆震音，卡答卡答的故障聲音
v. 敲，擊，打( knock的現(xiàn)在分詞 )；（心）怦怦跳；把…撞擊成（某種狀態(tài)）；批評(píng)
用作名詞(n.)
- A war came knocking on your door.
一個(gè)戰(zhàn)爭(zhēng)受到在你的門上爆震音的影響。
(vbl.)
- They found that knocking out the gene in fetal mice whose hematopoietic systems had already formed caused hematopoietic stem cells to disappear.
他們發(fā)現(xiàn)擊昏已經(jīng)形成造血系統(tǒng)的胚胎小鼠的基因會(huì)引起造血干細(xì)胞的消失。