beside和behind的意思不同。

beside的意思是旁边，例句:Marianne was none too pleased to find Simon seated beside her.玛丽安娜发现西蒙坐在自己旁边很不高兴。behind的意思是在…后面，例句:I keep urgent letters behind the clock so that I will be reminded to reply.我把要紧的信放在钟的后面，以免忘了写回信。