他们乘火车作了一次横跨印度的长途旅行。
那条绳索横跨这条街。
一道彩虹横跨天际。
Essentially, what they are is it's a protein that spans the membrane of a cell.
本质上来说,它是一个横跨细胞膜的蛋白质。
They might be a couple of inches, or most footers so-- and so no single fiber stretches all the way across the room.
它们可能就几英寸,或者最多几英尺-,所以没有一根纤维可以单独,横跨整间屋子。
And there is a bridge at the University of British Columbia that crosses a river that runs through campus and the rickety-- There's actually two bridges.
在英国伦敦剑桥大学有一座桥,横跨流经校园的一条河-,河上面,其实有两座桥。
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