严格意义上的左撇子是很罕见的。首先,手的动作包括拉、抛、拧、握、持笔和用针等许许多多动作。有相当一些人,不同的动作惯用手是不一样的。如有的人扔用右手,而接用左手;写字大部分人惯用右手,但持话筒惯用左手的人并不少。还有一些动作需双手协同,如锄地和持锹等。单手动作惯用某一侧手的人,双手动作的主导手有可能是另一侧的手。奇怪的是,人们对双手动作主导手是左手持相当宽容的态度。 Strictly speaking, left-handers are rare. First, the actions of a hand include pulling, throwing, twisting, holding, holding a pen, and using a needle. There are quite a few people who do not have the same dominant hand. If some people throw right-handed and left-handed, most of them use right-handed writing, but many people use left-handed microphones. There are also some actions that require hands coordination, such as squats and holdings. A person who uses one side of the hand to perform one-handed movement may be the dominant hand of both hands and may be the other side of the hand. The strange thing is that people are very tolerant towards the left hand and the dominant hand.