the opposite action — getting up before or at the planned time
文法句型
oversleep
oversleep + adverb of time (by …)
用法筆記
This verb is usually intransitive — you do not need an object. A rare transitive pattern exists ('to oversleep oneself') but is considered old-fashioned and is not recommended for learners.
常見錯誤
I overslept my alarm.
I overslept and missed my alarm.
'oversleep' is intransitive; it does not take a direct object.
I overslept for 30 minutes.
I overslept by 30 minutes.
Use 'by' (not 'for') to state how long you slept past your intended wake-up time.