People have leisure when resources are plentiful.
People have leisure sounds sufficient condition here. But some book said
when=if. 请各位大侠赐教。
h******8 发帖数: 66
2
看着更像是resources are plentiful是people have leisure的充分条件。
【在 s*******1 的大作中提到】 : People have leisure when resources are plentiful. : People have leisure sounds sufficient condition here. But some book said : when=if. 请各位大侠赐教。
