A 16th century castle in Scotland is close to collapsing after lumps of soil were washed away by floods, threatening its foundations.
出自-2016年12月聽力原文
It is certain that the Census procedures, which lump the online sales of major traditional retailers like Walmart with "'non-store retailers" like food trucks, can mask major changes in individual retail categories.
2019年6月六級(jí)真題（第一套）閱讀 Section B
Databases used by some companies don't rely on data collected systematically but rather lump together information from different research projects.