阶梯形的英文：
echelon form

echelon是什么意思：
n. 梯形,梯阵,梯次编队
vt. 排成梯队
vi. 形成梯队
  • Because activities involving the system of rites and music was restricted to the upper echelons of society
    因为礼乐完全是局限于社会上层的活动
  • The Armed Police Force has three echelons of leadership, namely, general headquarters, contingent (division) and detachment (regiment)
    武警部队设总部、总队(师)、支队(团)三级领导机关。
  • 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。
form是什么意思：
n. 形状；种类；形态，形式；状态；表格
v. 形成，产生；组织；塑造；排队
  • Conglomerate:To form or cause to form into an adhering or rounded mass.
    使聚集成块:形成或使形成紧贴在一起或圆形的块体.
  • Tranquillity sudden, vast, candescent: form of forms
    突兀、浩翰、炽烈的静穆:形态的形态。
  • The design is formed with triangles.
    图案是由三角形构成的。
  • The men are a loathsome form of life.
    这些人属于人类生命中令人齿冷的那一类型。
  • The essay is a literary form.
    散文是一种文学形式。

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