动词dwell的过去式和过去分词
He dwelt upon the memory of his mother. 他老是想着他的母亲。
Many of the customs and rituals of this tribe were as old as the hills they dwelt among. 这个部落的很多习俗和仪礼可追溯到很久远的时代。
He dwelt on the importance of matter. 他详述了这件事的重要性。
