VOA慢速英语2016.09.19
[audio]http://sound.yywz123.com/tingbbs/voa/voa20160919.mp3[/audio]There is big news about the environment: __1____________________________________. A new study confirms the hole is getting smaller. A report on the study was published late last month in the journal Science. 最近有一个关于地球环境的大消息：科学家们认为地球臭氧层开始愈合。一个新研究也证实臭氧空洞开始缩小。有关这个研究的报道上个月在《科学》杂志上发表。
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