能指的英文：
signans

The failure of a ring of muscle fibers,such as a sphincter of the esophagus,to relax.
弛缓不能指肌肉纤维不能松弛，如食管内的括约肌

Can I count on you? You seems to be the favorite.
我能指望你吗？你看起来最有希望。

Could you advice me what kind of shoes fit me best?
你能不能指点我，哪种鞋我穿最合适?