We are at the start of the second decade of the 21st century.
我们处在21世纪第二个十年的开端。
Mankind is about to enter the second decade of the 21st century.
人类即将进入21世纪第二个10年。
This year kicks off the second decade in the new century.
今年是新世纪第二个十年的开局之年。
The second decade of the 21st century has just begun.
21世纪刚刚进入第二个十年。
The second decade of the 21st century has just begun.
21世纪刚刚进入第二个十年。
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