| 单词 | echelon |
| 释义 | echelon n 1 level of authority or responsibility; rank in an organization 职权的等级; 级别 the upper echelons of the Civil Service 政府部门的高层. 2 step-like formation of troops, aircraft, ships, etc 梯形编队 aircraft flying in echelon, ie in a line stretching backwards to the left or right 成梯队飞行的飞机. |
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