A large island of Indonesia, situated to the south-west of the Malay Peninsula, from which it is separated by the Strait of Malacca; chief city, Medan.
苏门答腊岛（印度尼西亚大岛，位于马来半岛西南方，中间隔着马六甲海峡；主要城市麦丹）
Rhymes
Chartres, Montmartre, Sartre, Sinatra
Definition of Sumatra in US English:
Sumatra
proper nounsəˈmɑtrəsəˈmätrə
A large island of Indonesia, situated to the southwest of the Malay Peninsula, from which it is separated by the Strait of Malacca; chief city, Medan.