1·Most birds have to fly long distances to migrate.
大多数的鸟类不得不飞行很长的距离进行迁徙。
—— 《柯林斯英汉双解大词典》
2·They must run long distances.
他们必须跑很长一段距离。
3·The bat judges distances by a kind of echo-location.
蝙蝠用一种回声测定法来判断距离。
—— 《新英汉大辞典》
4·The parallax principle can be extended to measure the distances to the stars.
视差原理可以扩展到测量地球到恒星的距离。
5·The boats are anchored at regular distances and they carry the weight of the bridge.
这些船每隔一定的距离就会被锚定,它们承载着桥的重量。