Nevertheless, he began to rebuild the fire in the furnace;the pressure again mounted, and the locomotive returned, running backwards to Fort Kearney.

这是一个危险的办法… … 管他的！锅炉里添满了煤和木柴，火烧旺了，压力又加大了，大约下午两点钟的时候，机车倒着开回了克尔尼堡。

And we had some very serious concerns with our biologists that the eggs in the returning runs might not be viable by the time the rains came.

我们与生物学家有一些非常严重的担忧，即返回运行中的卵在下雨时可能无法存活。