单词	dark matter
释义	dark matterˈdark ˌmatter noun [uncountable] technical a type of matter that scientists think may exist. It cannot be seen but seems to affect the movements of stars
随便看	nanny nanny goat nano- nanobot nanomachine nanopublisher nanopublishing nanosecond nanotechnology Nantucket nap napalm nape naphthalene napkin napkin ring Naples Napoleon Napoleonic Wars nappy Napster narc narcissism narcissist narcissistic

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