knocking

常見例句

用作名詞 (n.)

• A war came knocking on your door.
  一個(gè)戰(zhàn)爭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)引起造血乾細(xì)胞的消失。
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