speedy

a. 快速的(高速的,迅速的,敏捷的,立即的)

The student's speedy answers were praised by the teacher.

这个学生敏捷的回答得到了老师的表扬。

Moving or functioning rapidly and energetically; speedy.

快的、迅速的快速且有力地移动或起作用的；迅速的