複數 的極式。極式乘除的幾何意義。旋轉與伸縮。 ... But why is a sphere's surface area four times its shadow? 3Blue1Brown. 3Blue1Brown. ... <看更多>

單數→複數(中文) 不規則變化+en ox→oxen (公閹)牛child→children ... 複）※ Over a thousand species of plants are found in this area. ... <看更多>

... appearances apple [`1py] apples April [`epr4l] area [`5r64] areas arm [3rm] ... 複數複數說明複數複數複數 armchair [`3rm%t]5r] armchairs army [`3rm6] ... ... <看更多>