1704953008
1704953009
He gave sound and practical advice．他提出正确的切实可行的意见。
1704953010
1704953011
Your invention is clever, but not very practical．你的发明很聪明，但不太实用。
1704953012
1704953013
We must adopt practical measures for settling problems．我们必须采取切实可行的措施来解决问题。
1704953014
1704953015
practicable主要用来说明计划、办法等“可行的”、“行得通的”：
1704953016
1704953017
His plan, I feel certain, is practicable．我感觉肯定他的计划行得通。
1704953018
1704953019
Her methods, I’m afraid, are not practicable．我担心她的办法行不通。
1704953020
1704953021
The remedy is simple, easy and practicable．这种疗法简单、容易、切实可行。
1704953022
1704953024
714 precaution—prevention
1704953025
1704953026
precaution指“预防措施”（可数）：
1704953027
1704953028
The doctor would like you to be vaccinated as a precaution．医生希望你打针作为预防措施。
1704953029
1704953030
Take every precaution so as not to catch cold．采取一切预防措施以免感冒。
1704953031
1704953032
Take precaution against burglary (fire)．采取防盗（火）措施。
1704953033
1704953034
prevention表示“预防”、“防止”（不可数）：
1704953035
1704953036
prevention is better than cure．防病胜于治病。（谚语）
1704953037
1704953038
prevention of forest fires is up to you．防止森林火灾你有责任。
1704953039
1704953040
prevention of disease is one of the duties of the government health officers．预防疾病是政府卫生官员的职责之一。
1704953041
1704953043
715 prefer—preferable
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1704953045
prefer是动词，表示“宁愿”、“更喜欢（愿意）”，可跟以下几种结构。
1704953046
1704953047
跟名词和代词：
1704953048
1704953049
I prefer the view taken by Balzac．我更赞成巴尔扎克的意见。
1704953050
1704953051
Which do you prefer？你更喜欢哪一个？
1704953052
1704953053
跟不定式：
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1704953055
She prefers to live among the working people．她更喜欢生活在劳动人民中间。
1704953056
1704953057
At the moment, he preferred not to think about the future．此刻他宁愿不想未来。
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