每日口說挑戰 為什麼全世界的阿嬤都好矮？ (Why Is Your Grandma So Short?)

今日挑戰句子

As they've aged, their cartilage has shrunk, their bones have worn down, and their muscles have deteriorated.

隨年紀增長，她們的軟骨漸漸萎縮、骨頭磨損，肌肉也開始退化。