be covered by/with有什么区别?怎么用?

问题描述:

be covered by/with有什么区别?怎么用?

1)be covered by ...:由...承担/负担/支付;被...掩护/报道/监视/控制等等,表示抽象的概念,后面接人,机构,或者组织.\x0dThese expenses are covered by the state.\x0d这些费用都由国家负担.\x0dAll road out of town...