在15世纪中叶到19世纪这一世界大变革时期,半个地球才听说有接吻之事。那时候,西半球、南太平洋和非洲、亚洲大部分尚不知道接吻。关于接吻的起源,有好几种说法。一种说法是:亲吻是灵长目动物的本能,鸟类和其它高等动物习惯将口中嚼碎食物哺入幼仔口中;正 During the great transformation of the world from the mid-15th century to the 19th century, only half of Earth heard about kissing. At that time, in the western hemisphere, the South Pacific and Africa, most of Asia did not yet know how to kiss. There are several versions of the origin of kissing. One argument is: kissing is the instinct of primates, birds and other higher animals are accustomed to chewing food into the mouth mouth pupil; positive