concentric

形容詞

1. 1

   同心的、共圓心的、同軸的

   The stone created concentric circles spreading across the still pond.

   石頭在平靜的池面上激起一圈圈同心的漣漪。

2. 2

   層層環繞的、同心排列的

   The old city was protected by two concentric walls.

   這座古城由兩道層層環繞的城牆保護著。