Propagation: The feijoa grows easily from seed, but the seedlings are not always true to type.
美埝容易生长,从种子,但幼苗并不总是正确的类型.
原声例句
人与鬼（下）
Once more he was lost in wonder at Howland's miraculous faculty for always, as the naturalists said, being true to type.
正如博物学家所说， 他又一次惊叹于豪兰神奇的能力， 因为他永远是真实的类型。
英语百科
True breeding organism
A true breeding organism, sometimes also called a purebred, is an organism that always passes down certain phenotypic traits (i.e. physically expressed traits) to its offspring. An organism is referred to as true breeding for each trait to which this applies, and the term "true breeding" is also used to describe individual genetic traits.