Crevices also existed in the nucleus. The nuclear membrane fractured and even disappeared.
细胞核变形,核内出现裂隙,核膜受损,甚至消失。
In fact, all renowned movie companies have to be restructured thoroughly, and some even disappeared.
实际上,所有老牌的电影公司都不得不彻底重组,有些甚至消失了。
Remember that there were other important languages in the past which lost their importance or even disappeared.
记住在过去有其他重要的语言,后来它们失去了重要性甚至消失了。
So, these memory cells are a way that your immune system keeps track of antigens that it's been exposed to for even if maybe the plasma cells that were producing antibody in response to the initial exposure have died and disappeared.
所以,这些记忆细胞,是人体免疫系统记忆抗原的一种方法,即使由浆细胞产生的抗体,在初次免疫应答中全部被消灭,记忆细胞仍然能迅速分化为抗体分泌细胞
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