You don't need a reason, although I recommend doing it when you're alone, otherwise you might get some interesting looks.

你不需要任何理由，我建议你在没人的时候这样做，不然你会招来奇怪的目光。

youdao

You don't need a reason, although I recommend doing it when you're alone, otherwise you might get some interesting looks.

你不需要任何理由，我建议你在没人的时候这样做，不然你会招来奇怪的目光。

youdao