We guess this is due to the small sample bias and the short time span of our data.

我们认为这是因为小样本误差和数据所在时间跨度较短所造成的。

youdao

We guess this is due to the small sample bias and the short time span of our data.

我们认为这是因为小样本误差和数据所在时间跨度较短所造成的。

youdao