Instead they're activities that require brainwork or creative energy work that requires mental effort or energy, like problem solving, software testing, reviewing a client's budget or planning a marketing strategy.
相反,它们是需要脑力劳动或创造性能量的活动,需要付出脑力努力或精力,例如解决问题、软件测试、审查客户预算或规划营销策略。