这样既可以防止水进入油箱,又可以作为能源储备,以备不时之需。
This will keep water out of the tank and will be a reserve in case you get into trouble.
我已经存了一些钱以备不时之需,但在我们走之前,我可能需要多挣点钱。
I've got a little put-aside for a rainy day, but I might need to earn a little more before we go.
我已经存了一些钱以备不时之需,但在我们走之前,我可能还要再多挣点。
I've got a little put aside for a rainy day, but I might need to earn a little more before we go.
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