A terrorist bomb ripped through the town’s packed shopping centre.

恐怖分子的炸弹穿过镇上人头攒的购物中心。

A regressive tax, like the poll tax, takes proportionately more of a poor person’s income.

像人头税一样，递减税占穷人收入的比更大。

He fought for room at the top.

他力争上游(想出人头地)。

I'd like to be somebody.

想要出人头地。

Objective:To explore the possibility of cultivation of microencapsulated human hair dermal papilla cells in vitro and xenogeneic model.

探讨微囊化人头皮毛乳头细胞体外培养及异体移植的可行性。