Naked eye
01
肉眼, 肉眼可见的
the human eye unaided by any optical device, used for observing objects and details directly
例子
The stars are visible to the naked eye on a clear night sky.
在晴朗的夜空中，星星可以用肉眼看到。
With the naked eye, you can see the texture and color of the fabric.
用肉眼，你可以看到织物的质地和颜色。
