melan/o( black)e.g. melanoma sympath/o( sympathetic rect/o(rectus) pexy( to fix)固定,固定术e.g. rectopexy metastasis/metastases/metastatic/metastasizemelan/o ( black ) e.g. melanoma sympath/o ( sympathetic ) rect/o (rectus) -pexy ( to fix ) 固定, 固定术 e.g. rectopexy metastasis /metastases/metastatic/metastasize