搬到热带地区后，他花了一个月时间才适应那里的炎热天气。

It took him a month to get ___acclimatized to the hot weather after moving to the tropical region.

搬到高海拔地区后，他花了几周时间才适应那里的稀薄空气。

After moving to the high-altitude area, it took him weeks to get ___acclimatized to the thin air.