Groundhog Day noun
Learner's definition of GROUNDHOG DAY
[singular]
: February 2 observed in the U.S. as a day that indicates whether winter will end soon土拨鼠日（美国为2月2日，预示冬天是否会很快结束） ◊ Tradition says that if a groundhog sees its shadow because the sun is shining on February 2, the winter will last six more weeks, and if it does not see its shadow because of cloudy weather, the winter will end soon.传统上认为如果2月2日天晴，土拨鼠出洞能看见自己的影子，冬天就还将持续六个星期；如果天阴看不见自己的影子，冬天将很快就会结束。