The eight-day mission was commanded by Armstrong, who, along with Aldrin, stepped out of their Eagle landing craft, planted an American flag and saluted it.
历时八天的飞行任务由阿姆斯壮进行指挥。他和阿特灵一起走出金鹰登陆艇，树起美国国旗并向它敬礼。
2
For malaria, stepped-up surveillance has detected treatment failures with the currently used artemisinin-combination therapy along the Thai-Cambodian border.
对于疟疾，逐渐加强的监测在泰缅边境发现了目前所用的青蒿素联合疗法治疗失败的情况。
3
They stepped out of the alleyway together. Fifty yards along the crowded pavement there were spiked black railings flanking two flights of steps, one labeled gentlemen, the other ladies.