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This week there were two big developments in astronomic science.
这周天文学界有两个大的进展。
youdao
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Please do not be panic, because this is a normal astronomic phenomenon on the earth.
遇到日食,请不要惊慌,这只是正常的天文现象。
youdao
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Please do not be panic, because this is a normal astronomic phenomenon on the earth.
遇到日食,请不要惊慌,这只是正常的天文现象。
youdao