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！

youdao

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。

youdao

Exhibit: American hardwood lumber and floorings. species include red oak white oak ash hard maple soft maple hickory cherry basswood beech birch curly soft maple butternut white pine etc.

展品：北美硬木板材，地板等。品种包括红橡，白橡，水曲柳，硬枫，软枫，山核桃木，樱桃木，椴木，山毛榉，桦木，波纹软枫，白胡桃，白松木等。

youdao

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