1. 用肉眼：dewclaw (犬, 牲畜等的)上爪, (鹿等的)假蹄 | with the naked eye 用肉眼 | hydrolytic dissociation 水离解
2. 凭肉眼, 不戴眼镜, 不用望远镜：with one's eyes open 注意地, 警惕地; 有意识地, 明知故犯地 | with the naked eye 凭肉眼, 不戴眼镜, 不用望远镜 | eye in the sky [美口]侦察卫星; 轨道运行的天文台
3. 用肉眼看：with smile 面带微笑 | with the naked eye 用肉眼看 | 对...很严格/愉快/生气/满意(见be angry at sth.)
1. The International Space Station is the biggest orbiting outpost ever built and can sometimes be seen from the Earth with the naked eye.
2. It will appear close to Jupiter but harder to see with the naked eye.
3. It is advised not to look directly at the sun with the naked eye or through a telescope.
4. Like many artificial satellites, the ISS can be seen from Earth with the naked eye.
5. Unlike solar eclipses which require protective glasses, lunar eclipses are safe to watch with the naked eye.
6. " The chips are so small that they can hardly be seen with the naked eye, " Sun insisted.
7. Unlike solar eclipses which require protective eyewear, lunar eclipses are safe to view with the naked eye.
8. Discovery could be seen with the naked eye for seven minutes as it shot upward, adding to the show.
9. Belief in ghosts is widespread in Thailand, with some saying they can sometimes be seen on photos but not the naked eye.
10. Mars looks like an orange star to the naked eye, but it's revealed as a disk with many features in modest telescopes.