tying down

The general direction the negotiations are heading is reasonably clear, but tying down the detail is proving very difficult.

协商达成的大致方向已经很明确，而确定细节却很困难。

One of the thieves quietly approached the goats, the bells of tying down to the tail on the donkey, a sheep instead.

第一个小偷悄悄地走近山羊，把铃铛解了下来拴到了驴尾巴上，把羊牵走了。

In Afghanistan, a resurgent Taliban were tying down more and more American resources.

在阿富汗，复兴的塔利班从美国手中夺走越来越多的资源。