hedgehog
n
small insect-eating animal covered with stiff spines, that rolls itself up into a ball to defend itself 刺猬. =>illus at App 1 见附录1插图, page iii.
The Native Americans caught and trained them and were then able to use them to carry their goods when they travelled from one camping ground to another.
美洲土著人捕捉野马,加以驯服。
One of the first jobs when you start work in an office is to learn how to use every piece of equipment.