词汇	roll-in and roll-out
释义	roll-in and roll-out 转入转出
随便看	symbol linguistic environment symbollise symbol list symbol list organization symbol location symbol logic symbol manipulating symbol manipulating language symbol-manipulating language symbol manipulating process symbol manipulation symbol manipulationlanguage symbol manipulation language symbol-manipulation language symbol manipulation program symbol manipulation system symbol-manipulation technique symbol map symbol mapping symbol mark Symbol marks for paper pattern symbol match symbol matching symbol meaning symbol meaning only one chromosome is present