常見例句Rissa was the first Alchemist to perfect the art of converting useless soft metals into mercury. 瑞薩是第一個能將無用金屬轉(zhuǎn)化成水銀的鍊金術(shù)士。Either of two cliff-nesting gulls(Rissa tridactyla or R. brevirostris) of northern regions, having a rudimentary hind toe. 三趾鷗後趾已退化的在懸崖築巢的鷗（三趾鷗或紅腳三趾鷗），居住在北部地區(qū)either of two cliff-nesting gulls(Rissa tridactyla or R. brevirostris) of northern regions,having a rudimentary hind toe 後趾已退化的在懸崖築巢的鷗（三趾鷗或紅腳三趾鷗），居住在北部地區(qū)Rissa tridactylan. 三趾鷗(鷗科) 返回 Rissa