It was already late. Nevertheless, he stayed a while. 
Đã muộn / trễ rồi. Tuy vậy anh ấy vẫn còn ở lại. * 099 like: It was already late. Nevertheless, he stayed a while. → →
It was already late. Nevertheless, he stayed a while. Đã muộn / trễ rồi. Tuy vậy anh ấy vẫn còn ở lại. * 099