previous: adj.1.先，前；以前的 (opp. following)。2.〔口语〕过早的，过急的。短语和例子on the previous night 在前一晚。 You have been a little too previous. 你稍微急了一点。 P- Examination (剑桥大学的)文学士学位初考。 previous question (议会中的)先决问题[动议]。
A special examination for a student who has been absent from or has failed a previous examination 补考为那些没有参加或没有通过初试的学生安排的特殊考试
3.
Previous examinations have shown that poorly maintained ventilation systems can add more than 30 % of the pollution that can lead to the so - called sick building syndrome 以往的研究告诉我们，没有清洁到位的通风系统会增加高于30 %的污染，而引起所谓的病态楼宇综合症。
4.
This thesis further combines the previous examination with an investigation of global trade practices of both ancient and pre - 1920 ' s china so as to systematically dissect the development and evolution of thinking that has underlined the international trade of modern china 阐述了当代中国对外贸易思想在对对外贸易的作用认识上，对对外贸易发展战略思想认识上，对对外贸易体制认识上，对西方贸易理论认识上以及研究方法上实现的转变。
