dotted note

基本解释

A double dotted half note or minim is equal in length to three quarter notes or crotchets and an8th note or quaver.
半音加兩個符點，時值等於三個四分音符或一個八分音符。
Please note that we used dotted lines between the layers to represent connections representing all possible inheritance relationships.
請注意，我們在各層之間使用了虛線，來表示所有可能的繼承關系的連接。
Lines 67-119 draw the axes. Note that this time you are drawing four dotted guide lines across the graph and labeling them accordingly.
第 67-119 行繪制坐標軸，這裡畫了 4 條輔助虛線，竝相應地做了標記。