concentration
/ˌkɑn.sənˈtɹeɪ.ʃən/ 名词 B1中文： 专注力、浓度
- The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
- The direction of attention to a specific object.
- The act, process or product of reducing the volume of a liquid, as by evaporation.
- The act or process of removing the dress of ore and of reducing the valuable part to smaller compass, as by currents of air or water.
- A field or course of study on which one focuses, especially as a student in a college or university.
- The proportion of a substance in a whole.
- The amount of solute in a solution measured in suitable units (e.g., parts per million (ppm))
- The matching game pelmanism.
复数 concentrations
来自图书馆
Intense mental concentration has a curious way of blotting out what has passed.
“This writing is of extraordinary interest,” said Holmes, who had been examining it with intense concentration.
The mere sight of his excellent appetite was an assurance of success; for I had very clear recollections of days and nights without a thought of food, when his baffled mind had chafed before some problem while his thin, eager features became more attenuated with the asceticism of complete mental concentration.
This he began to read with a smile of amusement upon his face which gradually faded away into an expression of intense interest and concentration.
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