You need hybrids, in order to improve the category of what you're doing.

你必须用杂交来改良品种

耶鲁公开课 - 古希腊历史简介课程节选

"I think I had, in the past couple of days prior to that, just an egg and a glass of water -- this is the extreme measures we have to go to in order to cut weight for our category, " she said.

CNN: Team GB's weightlifting warrior Zoe Smith tames Twitter trolls

Nagin will order a mandatory evacuation if a hurricane of a Category 3 intensity or higher approaches the city, Sneed said.

CNN: Louisiana governor declares emergency ahead of Gustav

How to track monthly spending patterns in order to determine when employees cross over from one usage category to another?

FORBES: AT&T and Verizon Considering Complex New Data Plans