该流动的控制 the flow control of

该流行病学质量规范 Guidelines for Good EPi-demology Practices ; GEPS

男人不该让女人流泪 Man shouldn't make woman cry ; Man shouldn't iet woman cry

该周流 Circumfluence

不该让女人流泪 Love Freely

应该采用业务流程优化 Business Process Improve ; BPI

人与人应该多交流 People should be more exchanges

我们应该阻止河流污染 We should stop river pollution ; We should prevent river pollution ; We preventing river pollution

你应该与他们交流 You should exchange with them

或许我们该随波逐流 maybe we should listen to the pope