As a courtesy, the hotel upgraded our room at no extra charge.

飯店出於禮遇，免費幫我們升等了房間。

Please extend every courtesy to our visitors from the Tokyo office this week.

這週請以最周到的禮數接待從東京辦公室來的訪客。

Out of courtesy, she emailed the candidates who were not selected for interviews.

出於禮貌，她寫信通知了沒有獲選面試的應徵者。