hard pine

基本解释

At that time, our teeth are good, hard pine nut shell, a Ke opened on!
那时候，我们的牙都很好，那么硬的松子壳，一嗑就开了！
But that's the way we are - hard-wired to pine for a family of our own, yet biologically bound for our desire to wander.
但我们就是如此——我们一直迫切渴望拥有自己的家，但我们受生理上的欲望驱使徘徊不前。
Fixed for ten hours on a comfortless bench, they know no way of occupying themselves, and if they think at all it is to whimper about hard luck and pine for work.
他们知道自己没有什么出路，只能在这磨人的条凳上坐上十个小时而动弹不得，如果说他们会想到什么，那也无非是哀叹命运的不幸或者渴望能有份工可作。

And a paw reached forward tentatively because the hard ground was littered with pine cones and he was a domestic lion unaccustomed to the wilderness.
NPR: Excerpt: 'Lost in Uttar Pradesh'
Pine Bluff, 40 miles south of Little Rock, has fallen on hard times.
ECONOMIST: Pine Bluff prepares for disposal