Their commitment was only to maintain the extent of forests, not their biodiversity.他们仅承诺维持现有森林面积，并不保证林区生物的多样性。Great progress has been made in protection of biodiversity.生物多样性保护取得重大进展.Aves diversity is one of the most im...
Their commitment was only to maintain the extent of forests, not their biodiversity.他们仅承诺维持现有森林面积，并不保证林区生物的多样性。Biodiversity was the buzzword of the Rio Earth Summit.生物多样性是里约热内卢地球峰会上的时髦词儿。Great progress has been made in p...
Meteors usually blaze for only a few seconds.流星往往只闪亮几秒钟.Have you seen two meteors mutual attracting in midair of simultaneously falling?你见到过同时陨落的流星在半空中互相吸引 吗 ?On a clear night scores of meteors streak the sky.在晴朗的夜晚,好几十颗...
用拖拉机牵引的喷雾器可以将5加仑药水喷洒在10英亩田地上。A sprayer hooked to a tractor can spray five gallons onto ten acres.将气流调节器插头接通墙上电源,并连接喷雾器.Plug the flow regulator into the wall and attach the nebulizer.利用喷雾器把细小的油滴喷入极板间的空间内.Fine drops of oil...
偏头痛的其他诱因还有电脑的视频显示器和灯管照明。Other causes of migraine are VDU screens and strip-lighting.从网上冲浪者的显示器上可以看到很多可“光顾”的商店。Seen from a netsurfer's screen, there are plenty of stores to "visit".21英寸屏幕的显示器a monitor with a 21 inch ...