点击下方单词,选择对的这个单词
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1. 自然观:适合度:natural fitness | 自然观:Natural Philosophy | 救荒:relief natural disasters
noun
1. the science of matter and energy and their interactions
e.g. his favorite subject was physics
Synonym: physics
多通过句子记忆单词,而不是单独死记硬背。