This will traverse the tree (in logarithmic time) and find the closest to the root node's summation of studio movies.
这个调用将（以对数时间）遍历树，查找最靠近树根节点的电影公司电影汇总。
2
The computation time of the method can be obviously reduced because of the higher computational efficiency of CC and FMM than that of direct summation.
由于循环卷积和FMM的计算效率明显高于直接求和，故整个算法的计算时间明显减少。
3
Man has become the summation of all kinds of social relations during the labour course at last, at the same time, labour has pregnanted ethics (morality).