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21. Assailed by --- troubled by

22. Anticipate ---foresee/ predict/foretell

23. Appeal to sb ---fascinate sb/ attract sb

24. appeal to ---call for

25. arise from – originate from

26. Attempt to do --- want to do

27. At the idea of/ at the mention of/ at the sight of/ at the sound of ---think/talk/see/hear

28. at the cost of 以什么为代价

29. Astonish –shock / startle /surprise

30. authority --- government

31. Available ---have free time

32. be addicted to – like

33. Be/feel obliged to do sth ---- have to do / must do

34. better – to make sth better

35. be crucial to---be important to

36. be confronted with – face with

37. Be delighted to do ---happy/glad/ pleased to do

38. be fond of – like

39. be beneficial to – be good for

40. be detrimental to – be harmful for