Often I desire a copy constructor which initializes each member variable as a copy, rather than default constructing and then assigning. e. g.

经常我渴望一个拷贝构造函数初始化成员变量作为一个副本，而不是默认的构造，然后分配。

youdao

By the nineteenth century, the dream of constructing a philosophical language capable of expressing universal truths had given way to the equally ambitious desire to unite the world through a single, easy-to-learn, politically neutral, auxiliary language.

NEWYORKER: Utopian for Beginners