Today, I was supposed to study at the library but I woke up around 12 o'clock.
今天,我本打算在图书馆学习但到12点左右才醒。
Once, Zhuangzi dreamed he was a butterfly, but when he woke up, he wasn't sure whether he was Zhuangzi who had dreamed being a butterfly or if he was a butterfly now dreaming he was Zhuangzi.
Once, Zhuangzi dreamed he was a butterfly, but when he woke up, he wasn't sure whether he was Zhuangzi who had dreamt being a butterfly or if he was a butterfly now dreaming he was Zhuangzi.