If something is visible, it can be seen.
The warning lights were clearly visible.
警示灯清晰可见。
They found a bacterium visible to the human eye.
他们发现了一个肉眼可见的细菌。
You use visible to describe something or someone that people notice or recognize.
clear , evident , noticeable
The most visible sign of the intensity of the crisis is unemployment.
预示危机严重程度的最明显迹象是失业情况。
The cabinet is a highly visible symbol of the executive branch of the United States government.
内阁是美国政府行政部门的一个凸显标志。