The smooth space flight, experts say, marks a big breakthrough for Chinese scientists.

专家们说这次顺利的太空飞行，标志着中国科学家们的巨大突破。

youdao

The smooth space flight, experts say, marks a big breakthrough for Chinese scientists.

专家们说这次顺利的太空飞行，标志着中国科学家们的巨大突破。

youdao