慢速英语:科学家可能有新的方法来拯救鲸鱼
日期:2019-06-05
Words in This Story
online - n. done over the Internet
baleen - n. whalebone
stress hormone - n. a chemical the body produces in answer to strong feelings of stress, worry or anxiety
species - n. a group of animals or plants that are similar and can produce young animals or plants
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