seeing the bottle of hair gel which he could charge duty on这句话如何翻译,最后的on怎样理解

问题描述:

seeing the bottle of hair gel which he could charge duty on这句话如何翻译,最后的on怎样理解

duty on sth
对什么征税
一看到他本应该交税的发胶
先行词是gel,which he could charge duty on=on which he could charge duty
seeing是非谓语,现在分词,表伴随状态,翻译成:一看到.说明,后面还有一个句子,跟这个部分形成一个完整的句子