双重性格用英语怎么说

double characters 双重当然是复数拉！
他具有双重性格：
he has double characters

注：Dual personality 是双重人格，跟双重性格是两码事，切比双重性格严重多了，不能混淆哦~！

双重性 [简明汉英词典]
dualism

性格 [简明汉英词典]
character
kidney
makeup
mettle

组合一下把！

double character

dual-character

double character

Dual personality 绝对真确