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We need a spare engine for this sled.
我们需要为这个雪橇准备一个备用发动机。
youdao
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Spare engine: We will provide at least one spare engine ready in China for each aircraft.
备用发动机：我们能为每架飞机在中国至少提供一台备用发动机。
youdao
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Spare engine: We will provide at least one spare engine ready in China for each aircraft.
备用发动机：我们能为每架飞机在中国至少提供一台备用发动机。
youdao