Ⅰ. excuse … for “原諒某事”。如：
① He excused me for being late. 他原諒我遲到了。
② Please excuse me for using your telephone without asking permission. 請原諒我沒經你允許就用了你的電話。
Ⅱ. excuse … from “使免于……，允許不……”如：
① The teacher excused him from the examination. 教師同意他免試。
② The boy was excused from doing housework. 允許這男孩不做家務事。
① He excused me for being late. 他原諒我遲到了。
② Please excuse me for using your telephone without asking permission. 請原諒我沒經你允許就用了你的電話。
Ⅱ. excuse … from “使免于……，允許不……”如：
① The teacher excused him from the examination. 教師同意他免試。
② The boy was excused from doing housework. 允許這男孩不做家務事。