For a closer look at it, we're joined now by NPR science correspondent Jon Hamilton.

为了进一步了解它，我们请来了NPR的科学记者乔恩·汉密尔顿。

youdao

For a closer look at it, we're joined now by NPR science correspondent Jon Hamilton.

为了进一步了解它，我们请来了NPR的科学记者乔恩·汉密尔顿。

youdao