vt.产(后代),生,产生,导致,优生交配,养育,训练
vi.产仔,繁殖,旺盛生长
n.属,种类,类型,血统
a hardy breed of sheep
适应力强的绵羊品种
If they are unemployed it's bound to breed resentment.
如果他们失去工作,一定会产生怨恨。
Many animals breed only at certain times of the year.
很多动物只在一年的某个时候交配繁殖。