focus of的用法和樣例：
例句
- The point of the earth's surface directly above the focus of an earthquake.
震中地震中位於震源正上方地球表面上的點 - Her beauty makes her the focus of attention.
她長得漂亮，很惹人注目。 - A central point or focus of bacterial growth in a living organism.
滋生的地方，生長處在活的有機物中細菌滋長的中心點或聚集地 - He always wants to be the focus of attention.
他總想成為注意力的焦點。
