1. To arrange or take place in an echelon. 
   排成梯队排列成梯队或以梯队形式发生
2. A job in the lower echelon of the corporation. 
   一份公司底层工作
3. After our first echelon was 250 or 300 kilometers ahead, the second and third echelons still had to wipe out enemy troops left behind.  
   甚至我们的第一梯队已过去五六百里，第二第三梯队还要消灭被第一梯队甩在后面的敌人。
4. Young whales and dolphins actually rest, eat and sleep while their mother swims, towing them along in her slipstream -a placement called echelon swimming. 
   小鲸鱼和小海豚实际上是当它们的母亲在滑流中拖着它们向前游动时休息、进食和睡觉的，形成一个游泳梯队的阵形。
5. Tibetan women were in the lowest echelon of society in old Tibet. Today, many of them hold leading posts, accounting for upwards of 30 percent of the cadres in the autonomous region in 1986. At present, five have become cadres at the regional level, 38 at the prefectural level and 232 at the county level.  
   在旧西藏处于社会最底层的藏族妇女，也已走上领导岗位，1986年妇女干部已占全区干部总数的30%以上，现有5人任自治区一级干部，38人任专区一级干部，232人任县级干部。

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