Areyouhappymostofthe的精選

問題詳情：Areyouhappymostofthetime?Ordoyoueasilygetangrysometimes?Everyonehasadifferenttemperament(脾氣).Itisusuallybelievedthatbothgenes(基因)andenvironmentmayaffectpeople’stemperamentsindifferentways...