单词house-factor
The in-house factor that affects seminal price is decided by the value of seminal itself.
影响种子价格的内部因素是由种子本身的价值决定的。
The reason of scrotal eczema this is more complex, have in-house factor, have exterior factor again.
阴囊湿疹的原因此较复杂，有内部因素，又有外部因素。