很短It has been determined by the United Nation’s Millennium Ecosystem Assessment that we are “living beyond our means” and that the natural hydrological system is a key service provided by nature that has been weakened by human development.

it has been since.用法 It has been in my it is/has been= It's has been accepted it has long been assumed it's always been you(It has always been it has been可以缩写成it's been it's been.的全称是不是 it has been... It ____ ever since 1924. A.has been broadcast B.has been broadcasting C.has been broadcasted请速速速速速速回答案，真的很急急急急急急。 It has been raining these days. It has been e()hot this week. it has long been known that it has since been rebuilt怎么翻译 很短It has been determined by the United Nation’s Millennium Ecosystem Assessment that we are “living beyond our means” and that the natural hydrological system is a key service provided by nature that has been weakened by human development. 造句it has been +时间段+since从句it has been +时间段+since从句 it has been used和it has been in use有什么区别吗 是It has been paid还是 It has been paid for? 为什么是It has been paid而不是 It has been paid for?