Coal is China's main energy source and will remain the cornerstone of China's energy security for a long time to come.
煤炭是我国的主体能源，在相当长时期内仍将是我国能源安全的基石。
当混凝土捕捉到光线时，它可以像木头一样温暖。
Friends are better than money. Almost anything money can do， friends can do better. In so many ways a friend with a boat is better than owning a boat.
别害怕深刻感受。
记忆是脆弱的，但它也是我们理解过去最强大的工具。
行为由当前刺激情境和过去的强化历史决定。
Foreign policy should not be confused with missionary work.