Take it from someone who has backpacked the length and breadth of Africa: it's big, slow, exciting and infuriating in equal measure.

引用一位背着行囊已经踏遍非洲山山水水的旅行者的话：广袤、缓慢、激动人心、使人恼怒，非洲都兼而有之。

youdao

I determined they should come about as they pleased for me; and though it was a tiresomely slow process, I began to rejoice at length in a faint dawn of its progress: as I thought at first.

我断定他们要是愿意的话，就会来找我的。虽然这是一个令人厌烦的缓慢过程，我开始庆幸到底在进展中有一线曙光了：正如我起初所想的那样。

youdao

The three-step search method is a commonly used fast motion estimation algorithm, but its initial step length is too big, thus the estimation effect of slow motion sequence is not so satisfactory.

三步搜索法是一种常用的快速运动估计算法，但由于它的初始步长太大而导致对缓慢运动序列的估计效果不能令人满意。

youdao

I've talked before - and at length - about the vexed question of Britain's slow productivity growth during this recovery.

BBC: George Osborne must weigh supply against demand