dynamical variable

例句：

1. 1. The team's performance was dynamic and inspiring.
   团队的表现充满活力且鼓舞人心。
2. 2. The new model caris dynamical and efficient.
   这款新型汽车动力十足且高效。
3. 3. The research on thedynamics of the universe is still ongoing.
   关于宇宙动力学的研究仍在进行中。