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40. Heat expands mental.　 熱量使金屬擴脹.　　　　 expand the production　 擴大生產

39. We can't exist without water.　 存在　　　 come into existence = come into being

38. I am exhausted. = I am tired out. = I am worn out.　

37. excuse sb from 免除…的責任, 對其要求　 He was excused from piano practice.

36. Please excuse my interrupting you.= Please excuse me for my interrupting you.

35. make an excursion to sp 到…短途旅行　　　　　　 an excursion train 旅游專列

34. exchange our opinions　 交換　　　　　 exchange A for B 用A換B

in exchange for 作為…的交換　　 I gave him my favorite football in exchange for his knife.

33. speak evil of sb 講…壞話　　 speak highly of sb

32. at all events , in any event (in any case)　 無論如何，在任何情況下　　

In any event, the worst that she can do is say “no”　　

31. it is estimated that…　 estimate the cost 估價　　　 the estimated cost 估計的成本