1.〈美〉前进的,有进取精神的,有干劲的
1.extremely determined to get what you want, even if it annoys other people
1.The genus homo evolved bipedalism and big brains, allowing its pushiest parvenu, h. sapiens, to crush competition ever since.
人属动物(genushomo)逐渐进化为直立行走,脑容量较大,从而使其最富进取心的“暴发户”——智人(h.sapiens)自此以后可以摧毁竞争对手。