It must be really old, about 4 billion years, give or take a few hundred million years.
它一定非常古老，大约有40亿年，有几亿年的误差。
The United States is still the same country it was a year ago, give or take about 6 million jobs.
美国依然是一年前的美国，输出或产生大约6百万的工作岗位。
The United States is still the same country it was a year ago, give or take about 6 million jobs.
美国依然是一年前的美国，输出或产生大约6百万的工作岗位。
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