There's no need to specify a "return" or anything else: just assign to the magic name $$.
不需要指定一个“return”或者任何其他内容:只是分配一个奇妙的名称 $$ 。
youdao
We should realize the magic in a name.
我们应该意识到名字的魔力。
To those men and women, America was a magic name.
VOA: special.2010.05.13
But it would be wrong to dismiss Mr Daley as a skilful vote-gatherer whose policies would not work without the magic of the Daley name.
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Pless gave him a piece of cardboard with his name written in magic marker.
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The name originally stood for Magic: The Gathering Exchange, an online site designed to trade cards used in playing the card game popular with the younger set.
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