The chicks began growing wider, taller, more robust beaks similar to those of a nut-cracking finch.
结果小鸡的喙开始长得又宽、又高、又结实，很像一种破坚果的雀喙。
2
This is done with nut-cracking machines (left) and provides one of the only sources of income for women in the area.
去壳依靠开壳机（左） ，开壳的工作对于当地的女性来说，是唯一收入来源。
3
Nut-cracking, for example, is a complex skill that involves placing a nut between an anvil stone and a hammer stone and coordinating the movements to hit the nut just right.