英语语法分析

David Darg, a medical relief worker in Haiti, told the BBC he had visited an area near Saint-Marc which - according to local residents - was the source of the outbreak.

海地医疗救难人员戴维达格告诉英国广播公司记者他去了圣马克附近的一个地方，据当地人说那里是暴发的源头。