音节分段：Saint Mar.ys River; AHD音标：mar“?z; 国际音标：6me*ri8z; 美国音标：6mWriz; A river, about 282 km (175 mi) long, rising in southeast Georgia in the Okefenokee Swamp and flowing eastward along the Georgia-Florida border to the Atlantic Ocean.; A river, about 101 km (63 mi) long, rising in the eastern Upper Peninsula of Michigan and flowing generally south and southeast to the northern end of Lake Huron. It forms part of the U.S.-Canadian border.