Getting flight experience should help them win a slot on the station, says Stern.

获得飞行经验应该有助于他们在空间站赢得一席之地，斯特恩说。

youdao

Getting flight experience should help them win a slot on the station, says Stern.

获得飞行经验应该有助于他们在空间站赢得一席之地，斯特恩说。

youdao