The extensive data sources, combined with computer simulations, created a timeline of ocean temperature changes, including cooling from volcanic outbreaks and warming from fossil fuel emissions.
2016年12月四级真题（第二套）阅读 Section A
英语六级真题
Yong Yu, a Chinese microbiologist, showed off the spacious building, with empty desks under an illustrated timeline detailing the rapid growth of China's Antarctic operations since the 1980s.
出自-2016年12月阅读原文
That now seems an impossible timeline.
出自-2015年12月阅读原文
Then I'll hand it over to you to discuss the timeline and summarize, and we'll take questions together at the end.
2019年6月六级真题（第二套）听力 Section A
柯林斯高阶英汉双解学习词典释义
N-COUNT
(尤指历史事件)年表
A timeline is a visual representation of a sequence of events, especially historical events.