英语词汇primitive mammals怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
?原始哺乳动物
... pouched mammals 有袋哺乳动物 primitive mammals 原始哺乳动物 the life of mammals 哺乳类全传 ...

1
Now is the world's most primitive mammals.
是现在世界上最原始的哺乳动物。
2
Many primitive lineages went extinct as sharks and bony fish became masters of the waters and tetrapods, the four-legged animals that eventually evolved into dinosaurs and mammals, conquered the land.
许多原始生物灭绝，鲨鱼和硬骨鱼成为水域的主人，四足动物最终进化成了恐龙和哺乳动物，征服了陆地。
3
Mammals arose from a fairly primitive reptile in the Mesozoic era.
哺乳类起源于中生代宛若原始的爬虫类。

单词	primitive mammals
释义	primitive mammals 简明释义原始哺乳动物网络释义 1 ?原始哺乳动物 ... pouched mammals 有袋哺乳动物 primitive mammals 原始哺乳动物 the life of mammals 哺乳类全传 ... 双语例句 1 Now is the world's most primitive mammals. 是现在世界上最原始的哺乳动物。 2 Many primitive lineages went extinct as sharks and bony fish became masters of the waters and tetrapods, the four-legged animals that eventually evolved into dinosaurs and mammals, conquered the land. 许多原始生物灭绝，鲨鱼和硬骨鱼成为水域的主人，四足动物最终进化成了恐龙和哺乳动物，征服了陆地。 3 Mammals arose from a fairly primitive reptile in the Mesozoic era. 哺乳类起源于中生代宛若原始的爬虫类。
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