动物体内的血液被推动着循环,处于永不停息的状态。
可持续性不是一种选择,而是煤炭行业的必需品。
The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.