lǎo / shī / yòng / Fèng / huáng / Hào / de / tàn / suǒ / rèn / wù / gěi / wǒ / men / jiè / shào / le / huǒ / xīng / yán / jiū老师用凤凰号的探索任务给我们介绍了火星研究。The teacher used Phoenix's exploration mission to introduce us to Mars research.