| 单词 | concentration |
| 释义 | concentration /kon'seuhn tray"sheuhn/, n. 1. the act of concentrating; the state of being concentrated. 2. exclusive attention to one object; close mental application. 3. something concentrated: a concentration of stars. 4. Mil. a. the assembling of military or naval forces in a particular area in preparation for further operations. b. a specified intensity and duration of artillery fire placed on a small area. 5. the focusing of a student's academic program on advanced study in a specific subject or field. 6. Chem. (in a solution) a measure of the amount of dissolved substance contained per unit of volume. 7. Also called memory. Cards. a game in which all 52 cards are spread out face down on the table and each player in turn exposes two cards at a time and replaces them face down if they do not constitute a pair, the object being to take the most pairs by remembering the location of the cards previously exposed. [1625-35; CONCENTR(IC) + -ATION] |
| 随便看 |
英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。