今天我们要学的词是efficient。 Efficient, 效率高的。最近研究发现， "Efficient people don't strive to get everything done perfectly; they only focus on the most important projects," 高效律的人并不把每一件事都做到完美无缺，而是将精力集中在最重要的项目上。 "The community is encouraging residents to use energy efficient bulbs in order to reduce utility spending," 社区鼓励居民使用节能灯泡，降低能耗支出。 "American Airlines is buying hundreds of new fuel-efficient aircraft," 美国航空公司正在购买几百架节能飞机。好的， 今天我们学习的词是efficient...