Learn: Expand your boundaries.

出自-2010年12月阅读原文

All the surveys found that people mixed up names within relationship groups such as grandchildren, friends and siblings but hardly ever crossed these boundaries.

2019年6月四级真题（第一套）阅读 Section C

Once you have worthy opponents, set some ground rules so everyone understands responsibilities and boundaries.

2015年12月四级真题（第二套）阅读 Section C

Students risk health and well being,as well as performance in other end-of-term work, when faculty offers take-home exams without clear, time-limited boundaries.

2017年12月四级真题（第一套）阅读 Section B

Esperanto is used internationally across language boundaries by at least 1 million people, particularly in specialized fields.

出自-2010年6月听力原文

As conservation areas become smaller, lions are increasingly coming into contact with human populations, which are expanding to the boundaries of these protected areas.

2018年12月六级真题（第一套）阅读 Section A

Eat Grub is Britain's first new food company that breaks western food boundaries by introducing edible insects as a new source of food.

2019年12月六级真题（第二套）听力 Section B

Megathrusts are created in earthquake zones-land plate boundaries where two plates converge.

2019年12月六级真题（第一套）阅读 Section C

For any individual, of course, the boundaries of these two classes are not stable.

2015年高考英语江苏卷 任务型阅读 原文

Set boundaries for yourself as your time goes.

2017年高考英语全国卷2 阅读理解 七选五 选项

Unstable boundaries of the two classes.

2015年高考英语江苏卷 任务型阅读 题设

Today, professors routinely treat the progressive interpretation of history and progressive public policy as the proper subject of study while portraying conservative or classical liberal ideas — such as free markets, self-reliance — as falling outside th

2014年考研真题（英语一）阅读理解 Section Ⅱ