They also run street cars, conduct trains, direct traffic, and deliver mail.
她们也驾驶有轨电车、火车，指挥交通以及邮递信件。
Review direct competition and conduct regular research.
评估直接竞争对手，并对其具体细节进行定期研究。
Oral conduct Chinese has direct relations with the quality of teaching.
教学口语的质量直接关系到课堂教学的质量。
Oral conduct Chinese has direct relations with the quality of teaching.
教学口语的质量直接关系到课堂教学的质量。
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