rate
US /reɪt/
UK /reɪt/

1.
率, 割合, 速度
a measure, quantity, or frequency, typically one measured against another quantity or standard
:
•
The unemployment rate has decreased this quarter.
今四半期、失業率は減少しました。
•
The car was traveling at a high rate of speed.
車は高速で走行していました。
1.