People are bound within relationships by two types of bonds: expressive ties and instrumental ties.(人们注定与两种类型的人际关系紧密相连：情感纽带和工具纽带。)
Reduced cost was also instrumental in developing steam-powered rolling mills capable of producing finished iron of various shapes and sizes.(降低的成本也有助于那些能够生产不同形状和尺寸的成品铁制品的蒸汽动力轧钢厂的发展。)
Language plays an instrumental role in determining the tone of a negotiation.(在确定谈判基调中语言发挥着重要的作用。)
Instrumental ties are social links formed when we cooperate with other people to achieve some goal.(工具性联系是我们为了实现某种目标而与他人合作时形成的社会联系。)
Some you’ll pursue for a mix of experiential and instrumental reasons.(很多目标是工具理由与经验理由的混合。)
He was instrumental in bringing about an end to the conflict.(他在终止冲突的过程中起了重要作用。)
Now Newton himself took an instrumental attitude.(牛顿自己比较倾向于工具学。)
The third and final type of learning is known as operant conditioning or instrumental conditioning.(第三种，也是最后一种学习类型,叫做作操作性条件作用,或是工具性条件作用。)
Diets rich in Omega fatty acids are instrumental in keeping your brain from aging.(食用丰富的欧米茄脂肪酸对预防大脑老化是有帮助的。)
Chandler was instrumental in making Jackie Robinson the first black player in the major leagues.(钱德勒帮助杰基·鲁宾逊成为职业总会中第一个黑人球员。)
