单词：epithelial tissue
epithelial tissue的用法和样例：
例句
- Epithelial tissues carry out a variety of functions.上皮组织执行各种各样的功能。
- The object of this biology class is to observe the epithelial tissue of animals through a microscope.这节生物课的内容是用显微镜观察动物的上皮组织。
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