经常在机场守候是环球旅行的一部分。
International travel involves a lot of waiting around in airports.
贝力弗在2000年生意破产后离家，中年危机使他产生环球旅行的想法。
Beliveau left home in 2000, shortly after his business went bankrupt.
一架仅依赖太阳能提供动力，用于环球旅行的太阳能飞机今天圆满完成首次试飞航程。
Solar Impulse, a prototype of an airplane designed to fly around the world using only solar power, made its first real flight today.
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