There are no guarantees that this method will work, but it's worth a try.
这个方法不一定奏效,但是值得一试。
因此,没有任何保证。
Of course, there are no guarantees.
当然,这并不能完全担保。
Al-Shabab recently ended a ban on airlifts, but a UNICEF spokeswoman, Shantha Bloemen, says there are no guarantees.
VOA: special.2011.07.23
But Cappex President Chris Long says that there are no guarantees of admission.
VOA: special.2009.02.26
There are no guarantees-you're not handing out guarantees?
VOA: standard.2010.08.05
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