Looking up...
Poor visibility caused by environmental factors like fog, rain, or darkness, making it difficult to see clearly.
在夜间行驶时，司机应注意视线不良的路段，确保安全。
When driving at night, drivers should pay attention to sections with poor visibility to ensure safety.
由于沙尘暴，机场能见度极低，所有航班延误。
Due to the sandstorm, visibility at the airport is extremely poor, causing all flights to be delayed.
Commonly used in traffic, aviation, and maritime contexts to describe hazardous visibility conditions.
Do not confuse '视线不良' with '视力不良' (poor eyesight). The former refers to environmental visibility, while the latter describes a person's vision impairment.
Use '视线不良' for environmental factors affecting visibility (e.g., fog, rain). For personal vision issues, use terms like '视力不良' or '近视' (nearsightedness).
The phrase combines 视线 (shì xiàn, 'line of sight' or 'visibility') and 不良 (bù liáng, 'poor' or 'not good'), directly describing suboptimal visibility conditions.
This term is typically used in formal or technical contexts, such as traffic reports, aviation safety, or maritime navigation, to warn about dangerous visibility conditions.