如果你想长命百岁，那么微笑吧——并且确保你发自内心。

If you want to live to a grand old age, then smile - and make sure you mean it.

youdao

如果你想长命百岁，那么微笑吧——并且确保你发自内心。

If you want to live to a grand old age, then smile - and make sure you mean it.

youdao