The U - tube method is recognized as a standard for industrial routine estimations.U形管方法被公认为日常工业鉴定的标准方法....estimations of pre-tax profits of £2.25 million.估计税前利润达225万英镑IV. the Error Estimations of Certain Generalized Cub...
I think they're just bumming around at the moment, not doing a lot.我想他们目前只是在四处闲逛,没做多少事。He was probably bumming his way home.“他多半是不花钱搭车回家.He had been bumming around the park all day.他在公园里荡了一整天了....