例句
柯林斯高阶英汉双解学习词典释义
英英词典释义
  • Noun
    1. the act of following someone secretly
  • Adjective
    1. following surreptitiously; keeping under surveillance;
    "always on guard against shadowing submarines"
行业词典
  • 遗传学: 加尾;前体mRNA在其3'端加尾信号指导下加上poly(A)的过程。;