nippy是什么意思

It was obvious that he had been blew through by the nippy wind.
它是明显的他是藉着刺骨的风吹过。

You'll have to be nippy if you want to be on time.
如果你想准时到达，就得赶快些。

But now the current Chelsea manager wishes to drive a trimmed down, more nippy model, and he has been justifying why.
但现在切尔西的教练希望走精简的模式，并且说明了原因。