Attempts to re-enact transporting the blocks on wooden rollers or floating them on the sea have not proved convincing.
之前的那些通过木制滚轴或在海洋上漂流的运输方法被证明是不可信的。
2
It proved not difficult to re-establish the intimacy of the two companions, on the same footing and in the same degree as heretofore.
事实证明，在这两个伙伴之间，同以往一样，在同一基础上重建同一程度的亲密关系，并不困难。
3
The shuttle’s engines and the tiles that protect it from the heat of re-entry proved expensive to maintain, and divvying up work among different contractors added to the costs.