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It's on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.
绘本就像一个观众可以在舞台上四处走动的剧院。
Innovation in coal mining isn't about reinventing the wheel, but about making the wheel more efficient and environmentally friendly.
走向自由,不管在哪,都没有轻松的道路;多数人在到达渴望的巅峰之前,都必须一次又一次穿过被死亡阴影所垄罩的幽暗山谷。