The reason is a fundamental one associated with the mechanism of light emission . 其基本原因涉及到光发射的机理。
Your reason is fitter for the woods than for the settlements . 你的这副脑子，就适合跟在野林里的人过活，不适宜跟殖民区的人。
Recovery of valuable dusts and fumes for economic reasons is also a major application . 从经济的角度回收有价值的粉尘和微尘也是其主要的应用方面。
The reasoning is involved, in contrast with the very natural explanation given by the mo method . 与MO法给出的很自然的解释比较起来，论证是复杂的。
The reason is not that she is afraid of me, but that it starts some crisis in her own mind . 这并不是由于怕我，而是这时候她心里仿佛爆发了什么危机。
The primary reason is undoubtedly the rapid improvement in health conditions throughout the third world . 主要原因无疑是整个第三世界卫生条件的迅速改善。
The introduction of geological time into our reasoning is of prime importance for petroleum exploration . 对石油勘探而言，把地质时间引入我们的推论是最重要的。
The highborn hotspur, with such an opinion of clavering, could yet from professional reasons be civil to him . 高贵的霍特斯珀即使对克拉弗林有了这样的看法，仍能出于职务上的考虑，跟他握手言欢。
The second reason is by far the more important of the two 第二个原因更为重要。
