英国广播公司交响乐团演奏起来挥洒自如。

The BBC Symphony Orchestra played with great panache.

何时在手，何时放手，挥洒自如实在不易。

When be in hand, when go all out, write freely and easily freely really difficult.

我真正感到自己在课堂能闲庭信步，挥洒自如，是普通话培训之后。

I really feel that they can saunters along in the classroom, could he be after the Putonghua training.

更令人叫奇的是老人竟然能用双手同时书写，还能挥洒自如，不得不叫人叹服。

The characters he wrote had a very elegant style. What was more surprising was that he could write with both hands at the same time, which really impressed me.