Djd
abbr. degenerative joint disease 关节变性病，退行性关节疾病
🗣️ 情景例句
I started traveling twenty-four hours ago.
从出门到现在已经二十四小时了。
It seems he's weak.
看起来他好像很虚弱。
I started to sing. The baby watched and listened ,and she didn't cry any more.
我开始唱歌。小孩看着，听着，不再哭了。