一、take effect的同义短语?take effect的同义短:生效;起作用operate/acttake effect美/teɪk ɪˈfekt/英双语例句:The traffic laws don'ttake effectuntil the end of the year.交通法要到年底才生效。The ...
一、back返回短语?①1、back down off 放弃,让步,退却2、back of 在...的后面;在...背后3、back out v.收回,停止不干4、back up 支持,援助;倒退5、answer sb. back (与某人) 顶嘴,回嘴6、back and forth adv.来 ...