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- That maths exam I took was a regular brain drain. 绞尽脑汁的数学测验，我真是绞尽了脑汁。
- He is just listening in external of that room. 他正在那房间的外面留神听着。
- Pull (out) the plug and let the water drain away. 拔掉塞子，把水放掉。
- They are digging trenches to drain the water off. 他们正在掘沟排水。
- They are digging trenches to drain the water away. 他们正在掘沟排水。
- This news program only covers external events. 这一新闻节目只报道国外消息。
- The coffee grains plugged up the kitchen drain. 咖啡渣堵塞了厨房的排水道。
- The drain is blocked and needs unplugging. 排水管堵塞了，得疏通一下。
- The bathtub drain needs repairing. 浴盆的排水管需要修理。
- She sets great store by external politeness. 她很注重表面的虚礼。
- All hands turned out to repair the terraces and drain the water. 所有劳动力都出来整修梯田，排除积水。
- All of our best laid plans are down the drain. 我们所有精心布置的计划都付之东流
- A sewer or drain crossing under a road or embankment. 涵洞横在公路或堤岸下面的下水道或排水管
- If you leave college, all that money has gone down the drain! 你要是中断大学的学习，你花的钱就会都付诸东流了。
- Our external trade has expanded during recent years. 我国的对外贸易近几年来有所发展。
- Military spending is a huge drain on the country's resources. 军费开支是国家资源的一大消耗。
- Boil the vegetables for 20 minutes and then drain off the water. 把蔬菜煮上20分钟，然后把水沥掉。
- Our plans to go swimming went down the drain when it rained. 天一下雨，我们去游泳的计划就全落空了。
- He judge people by mere external clothes rather than internal character. 他判断人只靠着外表的衣服而不是内在的品格。
- What he has spent is a drain on the savings of his parents. 他所花费的会耗尽他父母的积蓄。
