科齐亚泰克的学校敲响了警钟。

Koziatek's school is a wake-up call.

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资深医生不但支持这些激进的举措，甚至呼吁使用过去10年间抵制吸烟的强硬手段，这为食品行业敲响了警钟。

The food industry will be alarmed that such senior doctors back such radical moves, especially the call to use some of the tough tactics that have been deployed against smoking over the last decade.

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澳大利亚的森林火灾给我们敲响了警钟。

The forest fires in Australia have given us warnings.

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