1. The process of oxidation in human body gives off heat slowly and regularly. 人体内的氧化过程缓慢而又有规则地放出热量。
2. If a body is acted upon by a number of forces and still remains motionless, the body is said to be in equilibrium. 一个物体如果受到几个力的作用而仍然保持平静,我们就说该物体处于平衡状态。
And前后的两部分,有时表示不能同时并存的事物或动作。这时and宜译为“或”。例如:
3. The whole equipment can be assembled and dismantled in a matter of hours. 整套设备可以在几小时内安装或拆卸完毕。