to 有兩種用法: 一為不定式+動詞原形; 一為介詞+名詞/動名詞, to 在下面的用法中是第二種,即to+ 名詞/動名詞:
admit to承認(rèn), confess to承認(rèn),
be accustomed to 習(xí)慣于, be used to 習(xí)慣于, stick to 堅持, turn to開始,著手于, devote oneself to 獻(xiàn)身于, be devoted to 致力于, look forward to 盼望, pay attention to 注意