[译] 他不习惯于熬夜。
[误] He is unaccustomed of staying up late.

[正] He is unaccustomed to staying up late.
[注] be unaccustomed to...表示“不习惯于……”，其中 to 是介词，其后应加名词、代词或动名词；另外，介词 to 不能用其他介词替代。