n.

1. 一步；一步跨出去的长度（约2.5尺）[C]
   There were perhaps ten paces between me and the bear.

   在我和熊之间相距大约有十步。

2. 步速；速度；进度[U][S1]
   The work progressed at a slow pace.

   这项工作进展缓慢。

3. 步态，步法[U][S1]
4. （马的）步态；溜蹄[C]
5. 流畅[U]

vi.

1. 踱步，慢慢地走[Q]
   He got up, and began to pace up and down the room.

   他起身并开始在房间里踱来踱去。

2. （马）溜蹄

vt.

1. 踱步于
   She paced the floor, waiting for the phone to ring.

   她踱来踱去，等着电话铃响。

2. 用步子测[（+out/off）]
   I paced the path and I know how long it is.

   我用步子量过这条路，我知道它有多长。

3. 为……定步速（或速度）；调整……的速度（或步调）
   The teacher paced his teaching to his students' abilities.

   教师根据学生的能力调整教学进度。

n.

1. a single step taken when walking or running.
   ▸a gait of a horse, especially one of the recognized trained gaits.
2. speed or rate of motion, development, or change.
   ▸Cricket  the state of a wicket as affecting the speed of the ball.

v.

1. walk at a steady speed, especially without a particular destination and as an expression of anxiety.
   ▸measure (a distance) by walking it and counting the number of steps taken.
   ▸(of a trained horse) move with a distinctive lateral gait in which both legs on the same side are lifted together.
2. move or develop (something) at a particular rate or speed.
   ▸lead (another runner in a race) in order to establish a competitive speed.
3. (pace oneself) do something at a restrained and steady rate or speed.

prep.