/ˌəʊvəˈsli:p ||; ˈovɚˈslip/verb [I] (past tense past participle overslept /-ˈslept ||; -ˈslɛpt/) to sleep longer than you should have done 睡得太久；睡过了头: I overslept and was late for school. 我睡过了头，结果上学迟到了。 ☞Compare lie in and sleep in. 与lie in及sleep in比较。