踏学
1.Whatever you are, a scientist, a manager, an architect, a lawyer, a notice or a successful scholar; and no matter whatever you are diligent, or lazy, in the modern work, study and life, you always need our common good friends – computers.
2.I had been taking tap-dancing lessons for six months, and the school was giving its yearly recital.
3.By investigating and studying on the spot and consulting lots of data, this paper set up some vegetation-building technique patterns in physiognomy sections in Loess Plateau according to the theoretical knowledge of ecology, landscape ecology, developing and planning on district and soil and water conservation etc. , as well as the facts of "the project of conversion of cultivated-slope-land into forestry and grassland" and the economic development characters in this area.

