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pm.的英文翻譯是什麼意思，詞典釋義與在線翻譯：
英英釋義
名詞 pm:
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an examination and dissection of a dead body to determine cause of death or the changes produced by disease
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a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium
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the person who holds the position of head of the government in the United Kingdom
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modulation of the phase of the carrier wave
