Raw ore cannot be used directly in blast furnace. It must be prepared beforehand.

原矿是不能直接用于高炉冶炼的，必须事先对之加工处理。

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All these, of course, should be well prepared beforehand.

当然，这些都要事先准备好。

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If you have considered the likely competency-based questions beforehand, you are less likely to be caught off guard and more prepared to give a great answer.

如果你已经事先考虑过了可能会被问及的基于胜任力的问题，在真正面试时就不太会措手不及，也能准备得更加充分，到时给出精彩的答案。

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