一半的同学来自贫困山村用英语怎么说

"Half of the classmates come from poor mountain villages" 可以用英语表达为 "Half of the classmates originate from impoverished mountainous regions"。
"Originate" 是 "come from" 的正式词汇，而 "impoverished" 意为贫困的，"mountainous" 意为山区的。
例句：
Half of the students in this class originate from poverty-stricken areas.
Many of the children at this school come from underprivileged mountainous regions.
中文翻译：
这个班里一半的学生来自贫困地区。
这所学校的许多孩子来自贫困的山区。