Collum femoris
[医] 股骨颈
🧩 词语组成解析
颈； 颈状组织
[医]（拉）股
🗣️ 情景例句
Remember,
别忘了，
When can you pick up your ticket?
你什么时候可拿到车票呢？
At a special swimming pool in Los Angeles, children become expert at holding their breath under water even before they can walk.
在洛杉矶的一个特设的游泳池里，孩子们甚至在还没有学会走路时就已经能熟练地在水下屏住呼吸了。