Polycross
多系天然杂交, 多向杂交, 多父本杂交
🗣️ 情景例句
I felt differently at that time.
那时我的感觉又不一样了。
Many good cows have evil calves.
很多好母牛，会生坏小犊。
Reading about them increases our understanding without dispelling our fears.
阅读有关昆虫的书能增加我们对它们的了解，却不能消除我们的恐惧的心理。