Efficiency
[ ɪ'fɪʃənsi ]
第3级
其它 Other
n. 效率，效能;实力，能力;[物]性能;功效;
💡 词根助记
ef出+fic做+iency表名词 →做出事情→ 有效率
📝 例句
The two companies consolidated for greater efficiency.
这两家公司已合并以提高效率.
These machines have increased our work efficiency many times.
这些机器使我们的工作效率提高了许多倍。
A diploma is no guarantee of efficiency.
持有文凭不能保证工作效率一定高。
He was typing with speed and efficiency.
他在飞快地打字，工作效率很高。
A multistage operation improves the thermal efficiency.
多层操作可以提高热效率。
🌱 联想助记
【记】※effect-效果,efficiency-效率:效果取决于效率
※谐音“飞身西”:孙悟空飞身就到西天,效率很高
※ef-前缀“出”,fic-词根“做”,iency-名缀:效率,效能
✅ 同义词
🔴 反义词
🔤 词根
-fac-表示“制作”
常见变体有-fic-、-fig-、-fect-、-feat-
📖 牛津释义
efficiency
n[U]
state or quality of being efficient 能力; 效力; 效能.
🎯 考研助记
efficient(a.有效率的)-efficiency(n.效率)
🔁 扩展释义
*[i'fiʃәnsi]n. 效率, 效能, 功效【医】 效率, 效力【经】 效率, 效能
🌿 同词根单词
📖 同为「CET-4」词汇
查看全部CET-4词汇 ›🗣️ 情景例句
Now, this is the chemistry lab. Have you been in this lab before?
好啦，这是化学实验室。你们以前到过这个实验室吗？
Of course he is. He's very successful. He's made lots of records. They broadcast a programme of his music last month on the radio. Why don't you come on Saturday? I think you'd enjoy it.
当然啦！他很成功。他已经灌制了大量唱片。广播电台上个月播放了他的一个音乐节目。你星期六干吗不去听听呢？我想你会喜欢他的。
That's right. Catch a cold is something you do; have a cold is something you have.
对。“伤风”是你所做的事情；而“患感冒”则是你所经历的事情。