单词traditional-option
They"re the traditional option for a Bolivian breakfast and usually filled with meat and vegetables, and slightly sweetened with sugar.
他们是传统的玻利维亚早餐，并且通常会填有肉和蔬菜，加少量的糖。
In traditional option pricing method the volatility is assumed as a constant, but this is contradicted to the fact.
传统的期权定价都是假设波动率为固定常数，而这与实际不太相符。