Pin callus
[医] 髓腔内骨痂
🧩 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;
callus
['kæləs]
n. 老茧，假骨质;<植>愈合组织;
vi. 结硬皮，生老茧，结痂;
vt. 使生茧（或变硬），使（伤口等）结痂;
🗣️ 情景例句
He wrote some nice articles on Mom
他写了一些介绍妈妈的好文章
How much will it cost?
这种商品成本价是多少？
Though the crew were at first under the impression that the lost ship had been found, the contents of the chest proved them wrong.
当一只箱子从海底被打捞上来时，甲板上人们激动不已。船员们开始认为沉船找着了，但海底沉箱内的物品证明他们弄错了。