详细解释:n. 马里亚纳群岛
例句：
A division of Oceania in the western Pacific Ocean comprising the islands east of the Philippines and north of the equator. It includes the Caroline, Marshall, Mariana, and Gilbert islands.密克罗尼西亚西太平洋上菲律宾群岛以东，赤道以北的岛群，是大洋洲的一部分，包括加罗林群岛，马绍尔群岛，马里亚纳群岛和吉尔伯特群岛