Pilae
[医] 柱(如骨内的小梁)
🗣️ 情景例句
when it's very cold out.
冬天外面很冷的时候。
Children enter primary school at the age of 7.
孩子们7岁进小学。
He will take part in an important race across the Atlantic.
他将参加一次重大的横渡大西洋的比赛。