Once harm___,it takes many years to have thescar cured ,even all his life 为什么填is done?

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Once harm___,it takes many years to have thescar cured ,even all his life 为什么填is done?
Once harm___,it takes many years to have thescar cured ,even all his life 为什么填is done?

Once harm___,it takes many years to have thescar cured ,even all his life 为什么填is done?
一旦造成伤害,这个伤疤需要很多年才能被治愈,甚至需要一辈子的时间.
done是do的过去分词形式.你看这个动词do,我们不能说harm does sth,因为这个动作不是harm做的,只能是别人制造了伤害,也就是伤害是被动的.所以要用被动语态.被动语态的公式就是be done.harm在这里是作为单数的,所以是is done.
不定的可以追问哦〜〜〜〜

关于harm有一个词组:do harm to sth,译为对…造成坏影响或损伤。当harm作为句子的主语且与do搭配时,显然它是被动语态,因此要用is done,后面省略了to sth by sb,理解了么?