translation.en: And what they do is sit on top of a very large body of expertise and knowledge and they use that to react on the fly to kind of unpredictable demands, and that's very, very hard to automate."
translation.zh: 他们拥有很多 技能和知识并运用它们 随时随地地应对不可预测的要求， 这一点机器很难做到。“