has since done,is not yet known

has since done,is not yet known

＋▽＋ 您可能是想了解"have since done"这个短语。have since done"用于表示从一个指定时间点或某个事件发生后至今为止所发生的行为或事情。它是一个用来描述在某个时间段内完成某since adv.副词其后，后来"The fish, which has since been sent to a museum where it is being examined by a scientist, is called an oarfish.""这条后来被

3、基本结构：have/has + done 否定形式：have/has + not +done。一般疑问句：have或has。4、since的三种用法1) since +过去一个时间点(如具体的年、月、日期英语翻译“how long it has been since i have done something" 直接字面解释：距离我上次做成某事有多久了？大概就是说说话人觉得自己很久没有做什么

has done是什么时态现在完成时。1.现在完成时（The Present Perfect Tense）是过去的动作或状态持续到现在并且已经完成，对现在造成的影响，可能持续发生下去。它的构成是：主语+sleep 1 am_has_slept=yes done test "$2" = conftest.file ) then # Ok. : else as_fn_error $? "newly created file is older than distributed files! Check your system

网络继续网络释义1. 继续翻译项目网|翻译人才网——新闻信息==医学科技～ of ……也在；并具有……～has since……继续……asparagus n. …eeso.net|基于has been done的时态has been done 是现在完成时的被动语态has been done:已经做了……has already been done 已经做了； 已经办理something that has already been done

ˇ＾ˇ since 的意思是“从以来（至今）”，句子一般用现在完成时。它有3种用法：其结构：how long+have/has+主语+done+其他，回答时其结构：lt have/has+done+for+time lt have/has+done+since+/time/句子。好了，今天我们就分享到这里。如果你有什么意见和建议