词汇 | helix |
词根词缀 | 词源: 1563, from L. helix "spiral," from Gk. helix (gen. helikos), related to eilein "to turn, twist, roll," from PIE base *wel- "to turn, revolve" (see vulva). 词根记忆: n. 螺旋线[helic=spiral,表示"螺旋"] 词根词缀: helix helix n 螺旋线helic=spiral,表示”螺旋” helicopter n 直升飞机(helic+opt选择螺旋上升=直升飞机) helical a 螺旋形的(helic+al) helix n 螺旋线 |
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