An island of western Indonesia in the Java Sea between Sumatra and Borneo. It has important tin mines.

印度尼西亚西部一岛屿，位于爪哇海和苏门答腊岛与婆罗洲岛之间，有重要的锡矿。

youdao

A 2004 quake off Sumatra island triggered a tsunami that killed 230,000 in Indonesia and other countries.

2004年苏门答腊岛地震引发海啸，造成印尼等国23万人丧生。

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A 2004 quake off Sumatra island triggered a tsunami that killed 230,000 in Indonesia and other countries.

印尼地处地震多发地带，2004年苏门答腊岛由于地震引发海啸，导致印尼和周边其他国家23万人丧生。

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The 78 Sri Lankans were plucked from the sea by an Australian navy vessel more than a week ago, as they were attempting the journey from Indonesia's Sumatra Island to Australia.

VOA: standard.2009.10.27

The smog arrives around this time every year, as loggers and farmers on Indonesia's island of Sumatra and the Indonesian part of Borneo take advantage of the dry season to clear land by burning trees and scrub.

ECONOMIST: Will the neighbours ever dare to penalise the polluters?