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VOA慢速英语:专家了解夏威夷驼背鲸数量减少的原因
2018-12-01来源:和谐英语
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migrate - v. to move from one area to another at different times of the year
El Nino - n. a flow of unusually warm water along the western coast of South America that causes many changes in weather in other places (such as a lot of rain in areas that are usually dry)
blob - n. something that does not have a regular shape
determine - v. to learn or find out (something) by getting information
switch - v. make a change from one thing to another
reflect - v. to show (something): to make (something) known