名词
中文翻译：Unknown
同义词：
['mammal', 'mammary gland', 'mammary', 'maternal']
例句：
-
1. The moela is the first stage of a mammal's development.
哺乳动物的母体是其发育的第一个阶段。
-
2. The moela plays an important role in the growth and development of the fetus.
母体在胎儿的成长和发育中起着重要的作用。
-
3. Mammals are the only animals that give birth to live young.
哺乳动物是唯一能产活仔的动物。