cadres of the third echelon 第三梯队干部
At present, the domestic heavy duty motor vehicle production enterprises have formed a competition form between the first echelon and the second echelon and the third echelon.
目前，国内重型汽车生产企业已经形成第一梯队、第二梯和第三梯队的竞争格局。
The word is echelon and the first parameter is the part of speech, followed by a List containing definitions and an optional third parameter, which can be a List of synonyms.
单词是echelon，第一个参数是词性，然后是包含定义的List，还有可选的第三个参数，它可以是同义词的List。
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。
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