当生活很艰难，你想要放弃的时候，请记住，生活充满了起起落落，如果没有低谷，那站在高处也失去了意义。When life gets hard and you want to give up, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.罗伯托没有细想就从他那儿借了2,000美元。Roberto d...
Embryo has most commonly eitht genetically identical haploid nuclei.胚囊,普通具有8个遗传上相同的单倍体核.An exact multiple of the haploid number is called euploid.确切的单倍体数目倍增被称为整倍体.Autotetraploid An autopolyploid that has four times the h...
They whaled their rivals 20 to 0.他们以20比0大败他们的敌手.She whaled the ball so hard that It'sailed over the fence.她太用力的猛击使得球飞出了栅栏.They whaled their rivals 22 to 0.他们以22比0大败对方....