66．将划线部分（A）处翻译成汉语。

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56．_________ 57．_________ 58．_________ 59．_________ 60．_________

54．The scientists have learnt a lot from _______ （科学）studies．

53．I like loud music because it makes me _________ （有活力的）

52．It’s rude to _______ （指着）at anyone with your chopsticks．

51．He is new here so everything is __________（熟悉的）to him．