用件を済ませると、彼は丁寧に礼を述べて辞去した。
Once his business was done, he thanked them politely and took his leave.
夜も更けてきたので、そろそろ辞去することにした。
As it was getting late, I decided it was time to take my leave.
先生のお宅を辞去したのは午後十時を過ぎた頃だった。
It was past ten at night when we left our teacher's home.