And the hind leg has what we call a double-trochleated astragalus.

其后腿上有我们称作双滑轮结构的距骨。

It even had a special ankle bone, called an astragalus, shaped kind of like a pulley.

它甚至还有殊的踝骨，叫做黄芪，形状有点像滑轮。

And this is an astragalus or an ankle bone, which has a both an upper and lower curved surface which allows the spring in the step.

这就是距骨或者说踝骨，其表有向上和向下的弯曲，使之在走路有弹性。

On the borders of little streams larger plants flourish — lupines, daisies, asters, goldenrods, hairbell, mountain columbine, potentilla, astragalus and a few gentians; with charming heathworts — bryanthus, cassiope, kalmia, vaccinium in boulder-fringing rings or bank covers.

在小溪流的边缘，较大的植物繁茂——羽扇豆、雏菊、紫苑、黄花、毛铃、山耧斗菜、委陵菜、黄芪和些龙胆；与迷人的石南花 — bryanthus、casiope、kalmia、巨石边缘环或银行盖中的牛痘。