英语语法分析

If you rap it with your knuckle, you hear the thwack of gypsum rather than the ring of cold metal.

如果用指关节击之，你能听见石膏的闷响，而非冷冰冰的金属发出的鸣响。

The finger is still crooked to this day, bent at the bottom knuckle a full 45 degrees outward from his other fingers.

直到今天，他的手指仍然是弯曲的，底部的指关节与其他手指呈45度角向外弯曲。

Kivell and Schmitt think this suggests the independent evolution of knuckle-walking behavior in the two African ape lineages.

凯威尔和施密特认为这表明了在两个非洲类人猿谱系中关节行走行为的独立进化。