has been这句应该怎么翻译呢？

Since the 1960s the women's movement has been engaged in a systematic and constant critique of media institutions and their output.
我知道是已经的意思。我想知道这句复杂句的意思··

这句应该怎么翻？ has been 请问jack has been busy _ his report.这句话中应该填什么 这句怎么翻？？ 这句怎么翻? 这句英文什么意思Your account has been locked, contact your content provider for more information Wei Ming has been all over China by plane. 此句中has been 后为什么没有"to"? I have been to Tai'an. He has been there,too.组成一句___ ___ I ___ ___ he has been to Tai'an The rich and the poor has been enlarged. 其中的has 是不是应该用 have?? CPU has been changed