Most of the run was alongside a busy railway line with trains a mile long creeping past.
大部分路程与一条繁忙的铁路线并行，铁路上行驶的火车长达一英里。
As I came into his stall, he was busy picking out soft hay with which to line the straw in his self-made bed.
当我进到他的猪栏时，他正忙着挑选软干草，摆放在他自制的稻草床。
Brown: I've been trying to call him for the last ten minutes, but your line was busy. Will he be back soon?
布朗：之前十分钟我一直都在给他打电话，但总是占线。他很快能回来吗？
Probably I was too busy with the plot of the story I was writing or a line in a poem I was composing .
或许是因为我正忙着构思小说，抑或正沉醉于润色某一行诗句。
I was working at the base exchange one busy day when the line grew quite long.
一个繁忙的一天，我正在军事基地内商店工作。
I was working at the base exchange one busy day when the line grew quite long.
一个繁忙的一天，我正在军事基地内商店工作。
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