New Horizons, by the by, launched four years ago this past Tuesday, and is slated to arrive at Pluto in 2014.

顺便提一句，新地平线，四年前的一个星期二发射，预计2014年到达冥王星。

youdao

New Horizons, by the by, launched four years ago this past Tuesday, and is slated to arrive at Pluto in 2014.

顺便提一句，新地平线，四年前的一个星期二发射，预计2014年到达冥王星。

youdao