Pin bone
臀角，坐骨结节
🧩 词语组成解析
pin
[pin]
n. 钉;别针，扣针，饰针;大头针;没价值的东西;
vt. 压住;（用钉等）钉住，钉住，别住，扣住;用障壁等)围住，关住（俚语）抓住;[军]牵制;
adj. 针的;钉的;销的;大头针的;
bone
[bon]
n. 骨头;尸骨;骨质物;有…样的骨头的;
vt. 挑鱼刺，剔骨头;剔去…的骨;
vi. 苦学;专心致志;
🗣️ 情景例句
I certainly can print the news.
我当然可以刊出这则新闻。
This is my second year of college, I'm a sophomore.
这是我上大学的第二年，我是二年级学生。
Eric had been the eldest son of the family, very much older than his two brothers.
埃里克是这家长子。