Universities are facing grave problems because of diminishing resources.由于资源的减少，大学正面临严峻的问题。Yet this simple arithmetic ignores an offsetting effect: diminishing marginal returns.然而,这种简单的算法忽略了一种抵消效应: 边际收益递减.The unskilled s...
In a vase on the table stood a tulip.桌上的花瓶里插着一束郁金香.Beneath this, on the mantelshelf, is displayed a collec-tion of seventeenth-century tulip vases.下面的壁炉架上陈列的是一批17世纪的郁金香花瓶。Some day I'd like you to see our tulip field...
为保证操作人员的人身安全安装了桨叶保护罩。A blade guard is fitted to protect the operator.我们也许可以用桨把自己推过去。We might be able to push ourselves across with the paddle.10英尺长的桨拿起来感觉很笨重。The ten-foot oars felt heavy and awkward....