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单词	counterstain
释义	counterstain verb coun·​ter·​stain ˈkau̇n-tər-ˌstān  counterstained; counterstaining; counterstains transitive verb : to stain (something, such as a microscopy specimen) so as to color parts (such as the cytoplasm of cells) not colored by another stain (such as a nuclear stain) counterstain noun Word History First Known Use 1895, in the meaning defined above Medical Definition counterstain 1 of 2 noun coun·​ter·​stain -ˌstān  : a stain used to color parts of a microscopy specimen not affected by another stain especially : a cytoplasmic stain used to contrast with or enhance a nuclear stain counterstain 2 of 2 transitive verb : to stain (a tissue or microscopy specimen) with an additional usually contrasting color
随便看	settle a score settle a/the score settle accounts with settle bed settle differences settle down settle for settle on settle on or upon settle on someone settle on something settle on/upon (something) settle one's account settle one's hash settle someone or something down settle something on settle something on someone settle the score settle the stomach settle upon settle upon something settleability settleable settled settled (down)

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