Ephemerida
n. [昆] 蜉蝣目（等于Ephemeroptera）
??? 情景例句
Get busy with your famous apple pie.
快做你拿手的蘋果派吧。
Till we meet again.
后會有期。
I'm sorry, but I don't really have much choice.
對不起，我實(shí)在沒有什么選擇余地。