welcome  /ˈwɛlkəm/  CET4  TEM4(现在时：welcoming,过去时  ：welcomed,三单时：welcomes)  V-TIf  you  welcome  someone,you  greet  them  in  a  friendly  way  when  they  arrive  somewhere.欢迎  例： Several  people  came  by  to  welcome  me. 几个人走过来欢迎我. 例： She  was  there  to  welcome  him  home  from  war. 她在那里欢迎他从战场回家. 例： ...a  welcoming  speech. …欢迎辞. 2. N-COUNTWelcome  is  also  a  noun.欢迎  例： There  would  be  a  fantastic  welcome  awaiting  him  back  here. 会有一场热烈的欢迎仪式迎接他回来. 3. CONVENTIONYou  use  welcome  in  expressions  such  as  welcome  home,welcome  to  Boston,and  welcome  back  when  you  are  greeting  someone  who  has  just  arrived  somewhere.欢迎来到…例： Welcome  to  Washington. 欢迎来到华盛顿. 祝开心~!
welcome的过去式是welcomed还是welcame?