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雪人在我的想象中早已存在，遠(yuǎn)早于他出現(xiàn)在紙上。

I'm not afraid to take risks.

Never to suffer would never to have been blessed.

Sustainability isn't an option; it's a responsibility we owe to future generations.

僅僅觀察、實(shí)驗(yàn)、理論化和計(jì)算是不夠的。人們還必須想象。