unstable
- adj. 不稳定的；动荡的；易变的
考试真题
- He says the market for the tea is unstable and he is often forced to sell his purple tea for the same price as green tea leaves.
出自-2016年12月听力原文
- How unstable the West Antarctic ice sheet is.
出自-2010年12月听力原文
- Surrounded by open ocean, it is also vulnerable, but Antarctic experts disagree strongly on just how unstable it is
出自-2010年12月听力原文
- We are usually tired already by the time we get on a plane, and the crowded apace and unstable Internet connection make work more challenging.
2018年12月六级真题（第一套）阅读 Section B
- Mathematical models have also revealed that food webs may be unstable, where small changes of top predators can lead to big effects throughout entire ecosystems.
2019年高考英语天津卷 阅读理解 阅读C 原文
- Unstable boundaries of the two classes.
2015年高考英语江苏卷 任务型阅读 题设