Whenever any effective social demand changes, the relevant policy on vocational education must also be readjusted accordingly.

社会有效需求发生变化，职业教育的政策必须相应调整。

youdao

Any independent economic subject should initiatively seek for and produce new effective supply to expand social division of labor, to guide and develop new demand.

任何自主的经济主体，应该积极主动地寻找和创造新的有效供给，使社会分工得到扩展，从而引导和培育新的需求。

youdao

On the other hand, it has restricted its own the process of urbanization, curbed the expansion of domestic effective demand, also, to a certain extent, caused a great waste of social resources.

另一方面，制约了农民工自身的城市化进程，遏制了国内有效需求的扩大，在一定程度上还造成了社会资源的极大浪费。

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In an open letter to the social media giant, the groups demand "swift, comprehensive and effective action addressing the representation of rape and domestic violence on Facebook" and say they are also asking Facebook users to contact companies whose adverts appear around the offending content.

BBC: Facebook sexism campaign attracts thousands online