a narrow piece of land with water on each side which joins two larger areas of land
发音
例句
1. North America is connected with South America by the Isthmus of Panama. 巴拿马海峡把北美同南美连接起来。 2. The north and south of the island are linked by a narrow isthmus. 岛的北部和南部由一条狭窄的地峡相连。