当然，您可以经常进行备份以确保万无一失。
检查一下自己的个人资料，确保万无一失。
Check your personal papers and make sure everything is in order.
虽然一套好的西装能确保万无一失，备用的运动外套也是可以的。
Reserved sport coat also works, though a good suit is fail-safe.
虽然这是火箭发射任务，你无法确保百分之百的万无一失。
While this is the rocket business and you can? T make anything one hundred percent safe,?
人们花费上千美元以确保婚礼当天万无一失。
People spend thousands of dollars to make sure that their day turns out just right.
虽然话是这样说——谁又能确保附近没有蜘蛛的万无一失呢？
That's what she always said, though, who can ensure there is a no-spider-surrounding?
防电墙技术，确保在各种洗浴条件下都安全，万无一失。
Electricity guard technology ensures safety in all conditions of showers.
防电墙技术，确保在各种洗浴条件下都安全，万无一失。
Electricity guard technology ensures safety in all conditions of showers.
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