Looking up...
白天很热,所以我待在室内。
It's hot during the daytime, so I stay indoors.
The period of the day when the sun is up and it is light outside.
白天和晚上的温度差很大。
There's a big difference in temperature between daytime and nighttime.
Opposite of '晚上' (nighttime).
'白天' is often used to contrast with '晚上' (nighttime) when discussing daily routines or weather conditions.
Combination of '白' (white, bright) and '天' (day).
Often contrasted with '晚上' (nighttime) to describe time of day.