Bryant ran the ball up the other end, dribbled down the clock and nailed a stepback jumper off contact from a hard double team.

科比从后场，进攻时间快到时，两人的强硬包夹下用快速的步移动把送进篮筐。

Methods Prepare the root canal with routine, stepback, endo-ultrasound, precurve and synthesis methods, then fill the root cannal with gutta percha points, reexaminate after 6 months.

方法采用常规法、逐步后退法、法、预弯法和综合法进行根管预备并充填，6个月后复查。