But he was it expensive rent , demanding payment stumped .

但他又被它昂贵的租金、苛刻的付款方式难住了。

But it has seemingly left experts stumped .

但它似乎难倒了这些专家。

He stumped back into the house .

他拖着沉重的步子回到家里。

So he stumped every working day for almost 25 years to build a name for himself .

所以25年来，每个工作日他都去做演说以建立自己的知名度。

The world 's supposedly independent nuclear referee , in short , is stumped for the present .

总之，目前，设想中的全球独立核仲裁者还只能蹒跚而行。