High ten is a double handed high five, usually reserved for especially awesome scenarios.
The high five is a hand gesture that occurs when two people simultaneously raise one hand each, about head-high, and slap the flat of their palm against each other. The gesture is often preceded verbally by a phrase like "Give me five" or "High five." Its meaning varies with the context of use but can include as a greeting, congratulations or celebration.
High five是一种手势，指两人同时举起一只手到额头以上的高度，然后彼此击掌。做出这种手势之前通常会说一句“Give me five”或者“High five”。击掌代表的意思随不同的语境而有所变化，不过基本都是问候、祝贺或者庆祝的意思。