The average hospitalization costs decreased after deleting valueless period of hospitalization, and the hospital 's income rose each day.

去除无价值住院日后平均住院费用降低了，医院的每个住院日业务费用则有所上升。

youdao

The argument that Paulson was deliberately putting in securities that he thought were valueless makes no sense because, of course, that's why he was betting against them.

CNN: Case against Goldman is 'very weak'