radioactive nature是什么意思 radioactive nature怎么读
radioactive nature的用法和样例
- Water, as it occurs in nature, is never very pure.
由于水起源于自然界，从来不是很纯的。 - Door-god worship originated from nature and manitou worship in ancient times.
门神崇拜起源于人类远古时期的自然崇拜观念和神灵信仰观念。
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