mercilessly       
adverb uk/ˈmɜː.sɪ.ləs.li/ us/ˈmɝː.sɪ.ləs.li/
 冷酷无情地,残忍地,毫无怜悯之心地
in a way that has or shows no mercy (= kindness or willingness to forgive)
  Louis was teased mercilessly by his schoolmates. 路易斯被同学们无情地取笑。 
 The sun beat down mercilessly all day. 太阳一整天都在无情地晒着。 
 See: merciless
 - More examples
 - He didn't fit in there, and was picked on mercilessly.
 - The lorry bumped and shuddered mercilessly through the desert tracks.
 - A plump child, he was bullied mercilessly.