一直以来，邮政业的运营成本都很高而且很难改变，这也使得该行业的盈利处于十分脆弱的状态。
有一位妇女和他谈到养羊很危险而且成本也很高。
One woman told him about the danger and high costs of caring for sheep.
该仪器不仅有很高的诊断准确率，而且有操作简便，快捷，成本低等特点。
Features of the instrument are: accurate diagnose rate, cheap in cost, and easy to operate.
而且调查显示，人们认为伦敦是个成本很高的地方。
And the survey showed that London was seen as an expensive location.
而且调查显示，人们认为伦敦是个成本很高的地方。
And the survey showed that London was seen as an expensive location.
应用推荐