VOA慢速英语:人类作为群居动物的一面

beast – n. an animal under human control

burden – n. something oppressive or worrisome : the bearing of a load —usually used in the phrase beast of burden

strength – n. the quality that allows someone to deal with problems in a determined and effective way

comfortable – adj. allowing you to be relaxed : causing no worries, difficulty, or uncertainty

teenager – n. a young person between 13 and 19 years old

pouch – n. a pocket of folded skin especially for carrying the young (as on the abdomen of a kangaroo) or for carrying food (as in the cheek of a hamster)

hoarder – n. someone who collects things in their home obsessively, including things that would commonly be thrown away: bags, old food, or broken items

cling – v. to hold onto something or someone very tightly