Try and smile often but that does not mean you keep on smiling.

试着和微笑常，但这不意味着你继续微笑着。

youdao

If you keep on smiling and being kind, smiling and kindness will become your habits.

如果你保持微笑，和善，微笑与和善将会成为你的习惯。

youdao

Remember even though the outside world might be raining, if you keep on smiling the sun will soon show its face and smile back at you.

记住，就算外面的世界都下雨了，如果你保持微笑，太阳很快会出来向你微笑。

youdao

"The kids keep smiling every day, " says Tatsuya, with his little son perched on his lap.

BBC: Japan tsunami: Searching for the lost in Natori