문장구조정리가 무엇인지 모르시는 분들은 [구조정리 방법] 링크를 클릭하셔서 공부하신 후 구조정리 5를 연습해 보시기 바랍니다. [문제] 1. Each year, many species of shorebirds migrate from locations in the Southern Hemisphere to their breeding grounds in the Arctic; a journey of thousands of kilometres that requires frequent stops to fuel up. 2. The risk of death is significant, and the Arctic is an inhospitable region for most of the year, yet the shor..