In order that training should be effective it must be planned systematically.

为使培训有成效，必须有系统的计划。

《牛津词典》

To develop a good argumentative composition, example choosing should be effective, topic-centered and connected. It also requires rational and flexible arrangement to make the article convincing.

写作议论文需要一些事例，事例的选择要讲求有效性、典型性、针对性、就近性，事例的使用要讲求有序性、灵活性，这样才能写出一篇有说服力的议论文。

youdao

What should be effective advertising?

有效的广告应该是怎么样的？

youdao

And should that baby be born preterm, we should care for that baby by providing a package of interventions that have been shown to be tried and true and very effective."

VOA: special.2009.10.26

But what you should be able to do is take a look at a list of answers for what we're saying z effective might be, and determining which ones are possible versus which ones are not possible.

但是你们应该能够做到的,是看一下这个可能的,有效电荷量的答案列表，并且确定哪些是可能的,哪些是不可能的。

麻省理工公开课 - 化学原理课程节选

You just need to remember what's happening to z effective, which really tells us what's happening with all the trends, and once you know z effective, you can figure out, for example, what direction the atomic radius should be going into.

你只需要记住有效核电量的规律，实际上它会告诉我们所有的规律，只要你知道了有效核电量的规律，你就可以判断，比如，原子半径会向着哪个方向发展。

麻省理工公开课 - 化学原理课程节选

But recognition should be effective with mobile phones because, by nature, they are personal to you.

FORBES: Borderless Conversations: Relevance, Not Translation, Is the Challenge

Page writes good taxes should be effective in raising revenues and addressing the U.S. budgetary imbalance.

FORBES: Risk Of Going Hungary With A Financial Transaction Tax

But we expect the brief to say the following: reiterate -- number one, reiterating that the courts should not decide the case or the constitutional question, due to the pending repeal, which should be effective in a matter of months.

WHITEHOUSE: Press Briefing