1. A number of neurotransmitters exert their effects by first increasing cyclic AMP concentrations in target neurons. 许多神经递质首先通过增加靶神经元中的循环 AMP 浓度来发挥其作用。
2. Rising population combined with improved nutrition standards and shifting dietary preferences will exert pressure for increases in global food supply. 人口增长、营养标准提高和饮食偏好转变将对全球粮食供应施加压力。
3. Family in growing numbers has only one child, therefore, parents oftentimes focus all their attentions on that child and exert much pressure on him or her. 只育有一个孩子的家庭越来越多，因此，父母往往把所有的注意力都放在那个孩子身上，对其施加很大的压力。
4. In order to be successful he would have to exert himself. 他必须努力才能成功。
5. We all know that when we exert ourselves our heart rate increases. 大家都知道，当我们竭尽全力时，心率会加速。
