Isn't World Earth Day also celebrated then?
世界地球日不也是这天吗？
Isn't the World Earth day also on this day?
世界地球日不也是这天吗？
Q: When did Earth Day move from the United States to nations around the world?
问：地球日什么时候开始从美国走向世界各国？
And no, it's not Earth Day — it's World IPv6 Day!
不，不是地球日——而是世界。
When did Earth Day move from the United States to nations around the world?
地球日什么时候开始从美国走向世界各国？
When did Earth Day move from the United States to nations around the world?
地球日什么时候开始从美国走向世界各国？
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