Pure gold is tempered in a blazing fire.

烈火炼真金。

《新英汉大辞典》

Just like real gold to identify in a blazing fire, friendship must be tested in the adversity.

正如真金要在烈火中识别一样，友谊必须在逆境里经受考验。

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The only way to fight evil is to wrap it with love, just like only water can tame a blazing fire.

与邪恶作斗争的唯一方法是用爱去拥抱，就像只有水才能驯服烈焰一样。

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The naked wrestling scene remains but this time it takes place on an African beach rather than in front of a blazing log fire.

BBC: D H Lawrence Women fall back in love

Sturrock supposedly fell victim to a whispering campaign that began as a spark, and built in force and power until it became a blazing forest fire.

BBC: SPORT | Football | My Club | Southampton | Rupert the Rare

By the time we got there, the kids were back and had a fire blazing in the fireplace.

CNN: Taking the kids: On an old-fashioned Montana ski trip