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decussate vt.,vi.交叉成×形,交叉成十字形,交錯。adj.交...

decussation

Decussate describing leaves in opposite pairs and with alternating pairs at right angles to each other up the stem 交互對生的:兩個相鄰節上的對生葉交叉成垂直方向,稱為交互對生。