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汉语拼音：bù shí zhī xū

不时：不是预定的时间。说不定什么时候会出现的需要。

• 【解释】：不时：不是预定的时间。说不定什么时候会出现的需要。
• 【出自】：宋·苏轼《后赤壁赋》：“我有斗酒，藏之久矣，以待子不时之需。”
• 【示例】：粮食要有充分的储备，以应～。
• 【语法】：偏正式；作宾语；表示说不定什么时候会需要

• No matter how much money you raise at the outset, remember to bank some for a rainy day.

  不管一开始你筹到了多少钱，记得存起一些以备不时之需。

• That demand spike -- China was stocking up in case it needed backup fuel -- played a role in oil's climb to its record of $145 a barrel.

  此前中国一直囤积柴油以备不时之需，于是柴油需求激增，这是导致油价向每桶145美元的纪录水平挺进的原因之一。

• I'd like to take a vacation with my wife. However, we have decided to save money for a rainy day .

  我想跟太太一起去度假，不过后来我们还是决定存些钱以备将来不时之需。

• Maybe you're one of those people who holds onto every penny you've got - save money for a rainy day sort of thinking.

  或许你是抱有这种想法的人--要控制好攒下的每一分钱，以备不时之需。

• I guess it never occurred to you to put aside some money for a rainy day .

  我想你从不会留出点儿钱来以备不时之需的。

• I also don't actively use FaceBook, and I'm not adding any friends, though I still have an account for the day when I no doubt will.

  我也不常上Facebook，不加好友，虽然我的确有个帐号以备不时之需。

• This left him in his pocket, for emergencies, a balance of nearly three dollars.

  这一来他兜里只剩下差未几三块钱以备不时之需了。

• Gift-giving in China is often about showing off status and storing up goodwill that might one day produce favours.

  在中国，送礼常常是炫耀地位、储备人情以便将来不时之需。

• Microsoft is always in the hands of holders of its annual expenditure of about equal to the cash as and when necessary.

  微软手中通常都会持有约等于其全年开支的现金，以备不时之需。