echelon of researchers
英
美
- 科研梯队
双语例句
- Be the Balance Upholder of Business Echelon!
成为企业梯队平衡的维护商！ - The calves of dolphins swim alongside their mothers in an arrangement known as echelon formation.
刚出生的海豚以一种梯队的阵型游在他们母亲的身边。
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