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.

每个社会对每件事都有预定义。

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

组里的一名志愿者可以选择是否从另一名组员那里拿走预定数量的钱。