擊掌慶祝已經成為一個全球通用的手勢，連幼兒園小朋友都懂“Give me five”。那么，在特別值得慶祝的場合，單手擊掌已經不能表達喜悅之情，而要雙手擊掌的話，英文要怎么表達呢？

High ten is a double handed high five, usually reserved for especially awesome scenarios.
High ten指“雙手擊掌”，通常在極度令人振奮的情景下使用。

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是一種手勢，指兩人同時舉起一只手到額頭以上的高度，然后彼此擊掌。做出這種手勢之前通常會說一句“Give me five”或者“High five”。擊掌代表的意思隨不同的語境而有所變化，不過基本都是問候、祝賀或者慶祝的意思。

（中國日報網英語點津 Helen）