The ruler cracked and splintered into pieces
尺子裂开了，碎成了小片。
This ruler has one scale in centimetres and another in inches.
这把尺子有厘米和英寸两种刻度。
This ruler has only one scale in centimetres.
这把尺子只有厘米刻度。
There is a pen, a knife and a ruler in the box.
盒子里有一支钢笔，一把小刀和一把尺子。
This ruler has a scale in centimetres.
这把尺子的'刻度是用厘米表示的。