常见例句There is only one ball pen in the pencil box.這鉛筆盒裡衹有一支圓珠筆。No ball point within a quarter of a mile was safe from his stubby little fingers.凡在四分之一哩範圍內的圓珠筆沒有哪一支能逃過他粗短的小手指。 返回 ball-point