accustomed:
adj. 习惯的；通常的；独有的
v. 使习惯于（accustom的过去分词）
These fish have lived in the deep sea for a long time and are accustomed to darkness.
这些鱼长期生活在深海中，习惯了黑暗。
habitual:
adj. 习惯的；惯常的；习以为常的
The monk's habitual residence is the temple on the top of the hill.
这位和尚的常驻地是山顶上的寺庙。
