被污染的废物经常被随意倒掉，周边土地因此而变得很贫瘠。The polluted waste is often dumped, making the surrounding land infertile.黑麦耐贫瘠的酸性土壤。Rye is tolerant of poor, acid soils.土壤这样贫瘠，植物能获得足够的养分吗？Can plants obtain adequate nourishment from such poor...
Turn the mode dial to select Auto bracketing mode.转动模式盘至包围式曝光模式.I set the bracketing on my camera to 2 stops.我照相机设置的曝光区间为2级.Auto bracketing is especially effective when using a reversal ( slide ) film .这种拍摄对 负片胶卷 特别有效....
A vast panorama of the valley lay before us.山谷的广阔全景展现在我们面前.As we stepped into the vast inclosed court of the castle I got a shock.刚走进城堡中那个四面都是墙的大院子,我就不由得心惊胆战.Vast tracts of the country are wild and undeveloped...乡间大片大片的荒...