单词	preform
释义	preform /priːˈfɔːm / verb [with object] (usually as adjective preformed) Form (something) beforehand: a preformed pool... Organs developed in this way are referred to as preformed organs. Short and medium shoots were self-terminated and had only preformed nodes. Nitrogen is more soluble than helium and any preformed bubbles will quickly absorb nitrogen.
随便看	drastically drat dratted draught draughtboard draught excluder draught horse draughtily draughtiness draughtproof draughts draughtsman draughtsmanship draughtsperson draughtswoman draughty Drava River Drave Dravidian draw draw a bead on draw a blank draw a line under draw a veil over draw back

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