yeah
/jeə; jɛə/ adv
(infml 口)
1 (casual pronunciation of) yes *yes（的俗音）.
2 (idm 习语) ,oh `yeah? (used to show that one does not believe what has been said 用以表示对所说的话不相信)
`I'm going to meet the Prime Minister.' `Oh yeah? Very likely!' ｀我要去见首相了.＇｀噢, 是吗? 那太有可能了!＇