[ S or U ] an occasion when people are forced to move away from the area where they live permanently

中文解释

强迫迁离;强制驱逐（人们被迫迁离其长期居住地） The great Highland clearances in Scotland did not reach their height until after 1800. 苏格兰的高地清洗（意为盖尔人驱逐）直到1800年后才达到人数的高峰。