They were killed by thousands.

英 美
  • 他们被数以千计地杀害。
  • by prep.靠近;通过;被;经由;不迟于adv.经过;在旁边;靠近
  • killed adj.被杀死的;被消灭的动词kill的过去式和过去分词.
  • they pron.他们
  • thousands n.数千
  • were v.是,在,有(be动词的复数过去式)