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.
The wine is the most healthful and hygienic of beverages.
能源转型不仅仅是从化石燃料转向可再生能源；它关乎确保所有人的能源安全和可负担性。
The best way to predict the future is to create it.