1：It is high time that we put an end to the (trend).(該是我們停止這一趨勢的時候了) 2：There is no doubt that enough concern must be paid to the problem of……(毫無疑問，對……問題應予以足夠重視)
    3：Obviously ,if we want to do something … it is essential that……(顯然，如果我們想要做么事，很重要的是……)
    4：Only in this way can we ……(只有這樣，我們才能……) 5：Spare no effort to + V (不遺余力的)