As you start drawing, the thickness of your pencil will change depending on the amount of pressure you exert with your apple pencil on the tablet, similar to if you're using pencil on paper to erase something tapped, erase icon at the top.
當你開始畫畫時,鉛筆的粗細會根據你用蘋果鉛筆在平板電腦上施加的壓力大小而改變,類似於你用鉛筆在紙上擦拭東西時點一下,擦拭圖標在頂部。