Tdn
abbr. 可消化的养分总量（total digestible nutrients）
🗣️ 情景例句
I lived in Florida,
我住在 Florida，
One penny with right is better than a thousand without right.
合法取得的一辨士，胜于非法取得的一千辨士。
In this way, he has begun his own private 'telephone' service.
就这样，他开始自己的私人“电话”业务。