accustomed

After years of living in the mountains, he was accustomed to the thin, cold air.

(Chinese) 在山里生活多年后，他已经习惯了稀薄而寒冷的空气。

The diplomat was accustomed to the formal protocols of international summits.

(Chinese) 这位外交官已经习惯了国际峰会的正式协议。