设置这门课程是为了指导学生如何运用色彩和构图。The course is designed to help students with colour and composition.照片应该图像清晰，颜色逼真，构图合理。Pictures should be in focus, with realistic colours and well composed groups.安东尼拿着照相机下了车，走向离城墙更远的地方，为拍摄构图。Anth...
Observers have recently found in the Universe giant voids about 500,000,000 light-years across.观察员最近在宇宙中发现了直径约5亿光年的巨型空洞。Some military observers fear the US could get entangled in another war.一些军事观察家担心美国会卷入另一场战争。Internati...
The industrial production, research & development of ludwigite are reviewed. The significance of development also stated.述国内对硼镁铁矿工业生产 和 科研开发情况,以及硼镁铁矿开发的意义....
他正在辛苦地干活.He was sweating like a bullock.教授正在辛苦地编字典.The professor is drudging at dictionary - compiling.全村日夜辛苦地干着,要在9月的雨季之前收割并打完今年的庄稼.The whole village has been working day and night gathering and threshing this year'...