crazy/ 'kreɪzɪ /

1.adjective [inf] 
(mad) 发疯的

to be crazy about sth/doing sth
对某事/做某事着迷
to be crazy about sb
为某人神魂颠倒
to go crazy
发疯
to make {or} drive sb crazy
使某人心烦意乱
like crazy
拼命