Bacteria are invisible to the naked eye.

细菌眼看不见的。

Many stars overhead are invisible to the naked eye.

天上的许多眼看不到的。

Extragalactic nebula is invisible to the naked eye.

我们用眼看不到河外系的。

Macroscopic algae, commonly referred to as macroalgae or seaweeds, are large plant like structures commonly found in coastal waters worldwide.

眼可见的海藻通常大海藻和海草，世界各地海岸水域的常见大型植物。

Risk factors associated with HS bronchopneumonitis were oral–labial lesions, HS in the throat, and macroscopic bronchial lesions seen during bronchoscopy.

危险因素有口腔、损，咽喉HS，支气管镜下眼可见的支气管损。