duck soup

英文解釋：

名詞 duck soup:

1. any undertaking that is easy to do
   同義詞：cinch, breeze, picnic, snap, child's play, pushover, walkover, piece of cake

例句：

1. My new boss is duck soup, but his wife is difficult to handle.
   我的新老闆是個好胡弄的人，但他的妻子卻很難對付。