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Innovation in coal mining isn't about reinventing the wheel, but about making the wheel more efficient and environmentally friendly.
我知道,我感受到词语隐藏的含义。
善恶之间的界限是可渗透的,任何人在环境的逼迫下都可能跨越它。
我收到的最好的建议是忠于自己,永远不要妥协我的正直。
要理解一种文化,首先必须理解它的故事。
The beauty of mathematics is that it allows us to see patterns and structures in the world that are not immediately obvious.