This technique brings life to instruction and eases assimilation of knowledge.这一方法给教学带来了活力，也使知识的吸收变得容易了。The worst part of the set-up is the poor instruction manual.安装时最糟糕就是操作指南讲述不够清楚。All schoolchildren must now receive s...
拍摄实际的色球层很困难.It is difficult to photograph the actual chromosphere.色球层在光球层气体的搅拌下是个多泡层.The chromosphere is a frothy layer churned up by gases in the photosphere.在阿卡塔玛沙漠中发现了拟色球藻属细菌等微生物.Microbes like the bacterium Chroococci...