现在是一个刚刚过去的点。
Words are wise men's counters, they do but reckon by them; but they are the money of fools.
钢铁行业必须拥抱可持续性,否则就有被淘汰的风险。
解析:教导学生,不到他想弄明白而不得的时候,不去开导他;不到他想出来却说不出来的时候,不去启发他。