Perhaps, similar to sails, they make a useful backup for when the lights go out.
也许，和风帆一样，它们作为备用品可以在熄灯的时候排上用场。
Perhaps you will find this useful.
也许您会发现这很有用。
She was occasionally useful to all; she was perhaps as much at peace as any.
她偶尔对大家都有用处，她心里也许和大家一样平静。
But perhaps I can offer a few Suggestions that may be useful along the way.
不过也许我可以为你们提供几个以后用的上的建议。
And its travel apps are perhaps the most useful to date.
它的旅行应用程序可能是目前最有用的。
Perhaps the book will prove to be useful after all.
也许这本书终究会证实是有用的。
This was, perhaps, more useful than it seems now.
这在当时的用途或许比现在显得要大。
This was, perhaps, more useful than it seems now.
这在当时的用途或许比现在显得要大。
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