2017年6月四级高分作文必背词汇（21）

　　有益，有助于：

　　be beneficial

　　e.g. Mild acute stress can actually be beneficial-it can spur you into action, motivate and energize you.

　　轻微的急性压力事实上是有益的——它可以促使你采取行动，激发并鼓励你。

　　be instrumental

　　e.g. And while strength may be instrumental in winning respect, it has nothing to do with winning affection.

　　虽说强大的实力也许在赢得尊敬方面有帮助作用，但它和赢得喜爱却毫无关系。

　　be helpful

　　e.g. Your experiences may well be helpful to other readers, and to me.

　　你的经历或许对读者,还有我都是有帮助的。

　　be conducive

　　e.g. What we hope is that the development of relations between any countries should be conducive to maintaining world peace and promoting common development.

　　我们所希望的就是任何国家之间发展关系，都应该有利于维护世界和平、促进共同发展。

　　be favorable

　　e.g. Partnerships will be favorable and contracts can be signed.

　　建立伙伴关系是有利的，可以签订合同。

　　be optimal

　　e.g. It's important to experiment so you can tune the delay that prompts a retransmission to be optimal.

　　你需要通过一些实验调节延时的范围来对重传的机制进行优化。

　　facilitate

　　e.g. The new airport will facilitate the development of tourism.