a cake walk 走去吃糕（易事）
——as easy as pie
——as easy as turning off one's hands易如反掌
bump into 撞上（巧遇）
——knock into
——run against
——run into
——happen to meet
butterflies in my stomach肚里有只蝴蝶（心里緊張,七上八下）
——feeling nervous about
——being like a well in which seven buckets are drawn up and eight dropped down
——being in a mental flurry of indecision
come down in bucket傾盆大雨
——rain in a great pour
cost someone an arm and a leg要花上一條胳膊一條腿（代價昂貴）
——cost what it may
——pay at all costs
jump the gun 槍未響先偷跑（搶先）
——lead up
——catch the worm like an early bird
no sweat不出汗（沒什么大不了）
——no trouble (with)
——no problem
——easy to handle
when hell freezes over 地獄結(jié)冰（絕不可能的事）
——when the ocean is dry