你知道吗?人们并不只是在大哭或大笑时才眼含泪水,而是几乎每时每刻都有眼泪。人的眼睑每5秒眨一次,每次眨眼时,都会溢出一些泪水——科学家称之为基础眼泪或浸润性眼泪,这些泪水浸润我们的眼球,使之保持清 Did you know that people do not only cry when crying or laughing, but have tears almost every moment. The human eyelid blinks every 5 seconds, and every time it blinks, some tears are spilled - scientists call it base tears or infiltrating tears that infiltrate our eyeballs and keep them clear