从事

• They are placed out to trades or to services .
  叫他们出去从事各种行业，干各样职务。
• Some of the bigger firms are engaged in researches .
  一些较大的公司从事了研究工作。
• You'd better act very carefully before you are dismissed .
  你最好小心从事以免被解雇。
• He never should have been in the used-car business .
  他根本就不应该从事旧汽车的买卖。
• She wants to do social work when she finishes college .
  她打算毕业后从事社会福利工作。
• He has been engaged 10 years on the dictionary .
  他从事这本词典的编纂工作已达10年之久。
• It engages in espionage and terrorism with israel .
  它从事对以色列的间谍活动和恐怖主义。
• She works in public relations .
  她从事公关工作。
• His business is poultry farming .
  他从事养鸡业。
• Female unskilled workers are concentrated in this activity .
  非熟练女工集中从事这种工作。