A representative must have strong ability to carry out the duty.

代表必须有很强的履行职责的能力。

youdao

You must have strong heart.

你要有强大的内心。

youdao

In order to succeed as a designer, you must have strong people skills: you must be able to communicate a thought, frustration or message clearly and efficiently.

要成为一个成功的设计师，你必须掌握强悍的人际交往技巧：你要懂得清晰高效地向对方传达一种想法，挫败感和信息。

youdao

NATO Secretary General Anders Fogh Rasmussen says the defense ministers have a "general shared view" that the alliance must make Afghanistan strong enough to defend itself against militant forces.

VOA: standard.2009.10.23

So I think we need to devote the resources to try to be successful," The general says the U.S.and allied effort also needs to have a significant political and economic component, and that a strong,credible government must emerge from the current election process.

VOA: standard.2009.10.16

At the same time, given the critical importance of its work, this Council must have strong leadership from the White House, and direct accountability to me.

WHITEHOUSE: Creating the White House Council on Women & Girls

So if you want a strong manufacturing economy you must have a strong and efficient services economy.

FORBES: New Free Trade Talks On Services Key To U.S. Job Growth

Credit: A company must first have strong credit measured by a positive trending balance sheet.

FORBES: Physician's Approach To Stock Picking