1. Large-scale studies are needed to confirm the encouraging results we have obtained so far.需要大规模的研究来证实我们迄今取得的令人鼓舞的结果。2. Dr.Smith is starting the first training program himself, and his methods of teaching will be used in all subsequent training programs.Dr.Smith开始第一个训练计划他自己，他的教学方法等，将在所有后续培训课程中使用。3. Whoever disobeys the companys safety regulations shall be dismissed on the spot.凡违反公司的安全规章应当当场解雇。4. This is a very formal occasion.It is not appropriate to wear casual pants or skirts.
