Every gesture of the hand is going to be the equivalent of a quarter note.

每个手势都相当于一个四分音符。

Well, in music the most basic symbol for the beat is the quarter note.

音乐中表示拍的最基本符号是四分音符。

How can we get a half note that actually equals now three quarter notes?

我们怎么加上一个二分音符，从而正好代表了三个四分音符呢？

So every gesture of the hand is going to be the equivalent of a quarter note.

那么，每个手部的动作，都相当于一个四分音符。

Thus a dotted half note or minim is equal in length to three quarter notes or crotchets.

半音加符点，时值等于三个四分音符。