Coss
abbr. cooperative osteosarcoma study 骨肉瘤合作研究
🗣️ 情景例句
I'm most grateful to you for taking so much trouble to explain the best way of getting there.
你不厌其烦地给我解释去那里的最佳途径，我对些深表感激。
Happy is the man that owes nothing.
无债一身轻。
Which would you prefer?
你要选哪个？