句1: So far as I have been able to discover,there are only
four basic alternatives.这里面I have been able to discover 我能够发现的。但这里面为什么不用I have discovered?用have been able to是表示当时做某事的“能力”吗?其结果对现在产生影响(discover...
This development is boosting wholesale demand from the food service segment by 4% to 5% a year across Europe, compared with growth in retail demand of 1 to 2 percent.请问老师,by 4% to 5% a year across Europe 如何理解?谢谢!
In return they are entitled to treatment and drugs from public and private doctors and hospitals, although they must also pay a portion of the cost of treatment (a co-payment, in American parlance), subject to a cap. 请问这里的subject to是作什么成分?形容词作状语嘛?谢...
...udents live in neighborhoods where fresh food and green space are not easy to
find and fast food restaurants outnumber grocery stores. “The kids literally
come to school with bags of snacks and large bottles of soft drinks,” she says.
“They come to us thinking vegetables are awful, dirt is awf...
请问sth is sufficient to do sth结构中的不定式作什么成分?该结构中的主语和不定式构成什么关系?学生查了牛津,朗文,科斯林例句均为主谓关系,The reasons aren't sufficient to justify the ban. The money aren't sufficient to cover everything that nee...