Work has begun to determine the feasibility of using insects as biological controls, but effective biological controls are considered years away.

人们已经开始努力确定使用昆虫作为生物控制手段的可行性，但仍认为有效的生物控制手段还需要数年时间。

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This is inconvenient but effective.

这很麻烦但是很有效。

youdao

This is a simple, but effective attack.

这是简单却非常有效的。

youdao

But recent findings suggested that tPA may be effective in saving brain tissue even if three to four and a half hours have passed.

VOA: special.2009.09.22

But in England, the tradition of freedom and government bound by law was already strong enough to produce effective resistance.

但是在英国,自由传统和法制政府,使得自由得以很好的保护

耶鲁公开课 - 古希腊历史简介课程节选

But what's important is not where that most probable radius is when we're talking about the z effective it feels, what's more important is how close the electron actually can get the nucleus.

但重要的不是,最可能半径,当我们谈论它感到的有效电荷量的时候，更重要的是,电子实际上。

麻省理工公开课 - 化学原理课程节选

The simple, but effective, animations can further be bought to life with colorful projections atop.

ENGADGET: Alt-week 9.22.12: Quantum Scotch tape, moving walls and scientific beer

And those -- we believe those programs have been effective -- not enough, but effective.

WHITEHOUSE: Press Briefing

By skipping a single missing letter, the drug makes a shorter but effective version of dystrophin.

FORBES: In A First, An Experimental Drug May Help Boys With Muscular Dystrophy