And they don't have predefined lists of questions.

而且他们没有预先设定的问题列表。

Every society has predefined definition for everything.

每个社会每件事都有预定义。

One member of a pair could then take a predefined sum from the other, or not, as he chose.

里的志愿者可以选择是否从另员那里拿走预定数量的钱。