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2、 Carefulness insures you against errors、谨慎细致可使你避免发生差错。
3、 Insure your baggage before you leave home、离家前先给行李保险。
4、 insure的解释
5、 It is advisable to insure your life against accident、最好参加人寿保险，以防意外。
6、 More care would insure you against making so many mistakes、多加注意就能保证你不犯这么多的错误了。