Both raised their hands to shoulder height.

他们两个都把手举过肩。

It could feed at about its shoulder height.

也可以进食它们肩头高度的植物。

That means keeping your thumbs about at your shoulder height.

这意味着将拇指保持在与肩膀同高的位置。

His hand went up to shoulder height, then snapped forward and the knife sailed through the air and hung quivering in the wood of the window frame.

他的手举到肩膀的高度，然后猛地向前一挥，刀子飞了出去，颤抖着挂在窗框的木头上。