"Valentine's Day has really caught on" in Japan, says Jack Santino, professor of folklore and popular culture at Bowling Green State University.

“情人节在日本真的非常流行。”Bowling Green州立大学，民间艺术和流行文化教授Jack Santino说。

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In many Asian countries, tipping has never really caught on at all.

在许多亚洲国家，付小费从未真正流行起来。

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It has never really caught on, partly because its benefits are modest and partly because patients taking it must be watched carefully for signs of liver damage.

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