Meaning of xià tiān:
xià tiān
夏天
Noun
summer; CL:個|个[ge4]
Wǒ zuì xǐ huān de jì jié shì xià tiān.
我最喜欢的季节是夏天。
My favorite season is summer.
Shǔjià zài xiàtiān, wǒmen kěyǐ qù hǎibiān yóuyǒng.
暑假在夏天,我们可以去海边游泳。
The summer vacation is in the summer, we can go swimming at the beach.