36.义不容辞one's duty to do sth
37.全力以赴go all out for/spare no efforts
38.千方百计by every possible means
39.持之以恒persevere
40.家喻户晓widely known,known to all
41.默默无闻unknown to the public
42.树立榜样set a good example for
43.理所当然naturally,of course
44.数以万计tens of thousands of
45.世世代代from generation to generation
46.心不在焉absent-minded
47.梦想成真come true,become a reality
48.迫在眉睫extremely urgent
49.刻不容缓be of great urgency
50.无时无刻all the time
51.无所事事have nothing to do
52.毫不犹豫without hesitation
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