ADJECTIVE | VERB + UPHEAVAL | PREPOSITION | PHRASESADJECTIVE➤big, enormous, great, major, massive大動亂;激變▸➤cultural, economic, emotional, political, social文化劇變;經濟變革;情緒波動;政治動盪;社會動盪➤violent劇烈動盪▸➤revolutionary革命暴動VERB + UPHEAVAL➤cause導致激變▸➤experience, go through, undergo經歷劇變◇The company underwent a massive upheaval after the takeover.收購之後該公司變動巨大。PREPOSITION➤during the upheaval, in the upheaval在動亂期間◇He rose to power during the political upheavals of the 1990s.他在 20 世紀 90 年代政治動亂期間上台執政。PHRASES➤a period of upheaval動盪時期