At thes third step, for every rectangular, we check whether boundary include two apex which is selected at first step, if not included, then the boundary grow until that contains the apex.

然后，判断每个矩形区域内的目标物边界是否包含手动选取的两个对角顶点，若不包含，则边界生长直至包含该对顶点；

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At thes third step, for every rectangular, we check whether boundary include two apex which is selected at first step, if not included, then the boundary grow until that contains the apex.

然后，判断每个矩形区域内的目标物边界是否包含手动选取的两个对角顶点，若不包含，则边界生长直至包含该对顶点；

youdao