Backwardization
延期交割金
🗣️ 情景例句
But you had to be good at math.
但是你数学一定很好。
A test pilot needs plenty of nerve.
飞行试飞员需要极大的勇气。
he is lending the bank money, repayment of which he may demand at any time,
就等于把钱借给了银行。这笔钱他可以随时提取，