我打算用连续100天打卡学习的方式，把一个商务英语学习的系列学完；
学习完之后，我会买给自己一个实物作为奖励；
欢迎大家来为这个自我激励的奖品出出主意，奖励自己什么呢？
Day17-payment
regular practice..the mode of...
L/C=letter of credit..transaction
as a matter of routine..establish
D/A=documents against acception
pay in installments..long-term
meet each other half-way
if that's the case..installment
make an advance payment
pay off the rest in equal installments
