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这幅图片上的阴影显示的是2009年的臭氧层空洞。
The size and shape of the ozone hole is shown in 2009.
youdao
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没有人预料到这么快就可以观测到臭氧层空洞的恢复。
No one had been expecting to discern the recovery quite so soon.
youdao
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没有人预料到这么快就可以观测到臭氧层空洞的恢复。
No one had been expecting to discern the recovery quite so soon.
youdao