眼球

例句：

1. 1. She rubbedher eyes and looked at the clock.
   她揉了揉眼睛，看了看表。
2. 2. Thedoctor examined his patient's eyeballs.
   医生检查了他的病人的眼球。
3. 3. Thescientist studied the structure of the human eyeball.
   科学家研究了人类眼球的结构。