请教2个单词的区别！

请教2个单词的区别！

accustomed
adj.（形容词）
Frequently practiced, used, or experienced; customary:
惯常的，通常的：经常被实践、使用或经历的；习惯的：
spoke with her accustomed modesty.See Synonyms at usual
以她惯有的谦虚态度讲话参见 usual
Being in the habit of:
习惯的：
I am accustomed to sleeping late.
我习惯于睡得很晚
Having been adapted to the existing environment and conditions:
适应的：适应现存的环境或条件的：
eyes not accustomed to desert sun.
眼睛不适应沙漠里的阳光

customary
adj.（形容词）
Commonly practiced, used, or encountered; usual.
习惯上的：共同实施、使用或遇到的；
Based on custom or tradition rather than written law or contract.
按惯例的：基于习俗或传统而不是成文法或合同的

i am accustomed to this thing.我习惯了这个东西
the customary folk dance is very popular 传统的民间舞蹈很受欢迎