It is+段时间+since sb did.

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/14 19:34:39

It is+段时间+since sb did.
这是翻译成自从不做.多久了
那么自从做.多久了应怎么翻译
It is not+段时间 before sb did 怎么翻译

it's ……since sb did好像是自从某人做了什么事情以后有多久了吧
你要说不做的话可以在did代替的具体的动词上做文章,比如自从他开始打球可以是since he started to play...要是自从他不打球以后可以说since he gave up playing...之类
it's 一段时间 before sb did应该是在某人做某事之前有多久了
至于时间前面加not就不知道了,如果是具体的时间好像不太好解释,如果是抽象的话,比如it's not a long time before...那还可以理解为在某件事之前并没有经过很长时间

It is+段时间+since sb did. It is +段时间＋since+主语＋did.请比较： It is/has been+since sb+did 怎么用? It is/has been + since sb + 有没有it is been+段时间+since和it was be+段时间+before这种表达? It is+时间段+since+时间点 It is+时间段+since+时间点. It is / has been + 段时间 + since + 一般过去时,从句中的动词用延续性动词和非延续性动词有何 it is 时间段since从句和it has been时间since从句的区别是不是It is said that +did Sb+did+that + had done? It is +一段时间+ since It's +一段时间+since sb. last did sth. 某人不做某事多久了这里的did 动词的词性有何限