vesicle

例句：

1. 1. The cells are filled with vesicles of different sizes.
   细胞内充满了不同大小的囊泡。
2. 2. The vesicles burst and release their contents into the surrounding medium.
   囊泡破裂并释放其内容物到周围介质中。
3. 3.The study of vesicles has led to new insights into cell function.
   对囊泡的研究已经揭示了细胞功能的新的洞见。