基本解释n.填塞物；堵塞物；砲眼封泥動詞stem的現在分詞形式.同根派生 英汉例句The sap flowed out when he broke the stem of the flower.他把花莖折斷，汁液就流了出來。The gardener could graft as many as twenty cuttings an hour on to briar stems.這位園丁每小時可以嫁接多達20根枝條到石南莖上去。