| 例句 |
What are the greatest sources of conflict in the Middle East?.中东冲突的最重要原因是什么？The big culprit in the drain of electrical power is air-conditioning.电力过度消耗的重要原因是使用空调。The laxity of export control authorities has made a significant contribution to the problem.出口控制部门工作懈怠，是造成此问题的重要原因。 |