vascular tunic of eyeball

例句：

1. 1. The vascular tunicof the eyeball is crucial for vision.
   眼球血管套对于视力至关重要。
2. 2. The doctorremoved the vascular tunic of theeyeball to repair the damaged retina.
   医生移除了眼球血管套以修复受损的视网膜。
3. 3. The patient's eyesight was restored after the vascular tunic of the eyeball was replaced.
   患者的视力在眼球血管套被替换后得到了恢复。