It is high time that we put an end to the (trend)。
该是我们停止这一趋势的`时候了。
It is time to take the advice of … and to put special emphasis on the improvement of …
该是采纳……的建议，并对……的进展给予特殊重视的时候了。
There is no doubt that enough concern must be paid to the problem of …
毫无疑问，对……问题应予以足够的重视。
Obviously， … If we want to do something … ， it is essential that …
显然，如果我们想做某事，很重要的是……
Only in this way can we …
只有这样，我们才能……
It must be realized that …
我们必须意识到……