他有多少經(jīng)驗從事于這項專案 呢 ?How much experience does he bring this specialized work to?瓊正從事于女權(quán)平等運動.Joan is campaigning for equal rights for women.有些從事于 “ 純理論 ” 學(xué)科的科學(xué)家常常傲慢地把應(yīng)用科學(xué)問題貶低為世俗的雕蟲小技.The " pure'scientist often assumes th...