One, completing a round trip, and the other, it's off on a one-way ticket.

NPR: Stardust Set to Deliver Comet Samples

They took the Eurotunnel to Calais before completing their 600-mile trip by coach.

BBC: Liverpool arrive in Madrid after marathon journey

So when our family trip to Africa in July 2008 coincided with completing my Girl Scout Gold Award, I knew the chance to make a real difference had arrived.

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