He doesn't have any beliefs; he just takes one day at a time.
他没有什么信仰,每天只是得过且过
His apology didn't seem sincere.
他的道歉看起来不是真诚的。
One night, the gaoler decided to play a joke on his colleague to find out if, after so many performances, he had managed to learn the contents of the letter by heart.