这堵墙是用石头砌成的。

The wall is made of ___stone.

这些台阶是用石头砌成的。

These steps are made of ___stone.

孩子们在河边收集小石头玩耍。

The children collected small ___stones by the river to play with.

她项链上的绿宝石在阳光下闪闪发光。

The green ___stone on her necklace sparkles in the sunlight.

吃樱桃时要小心别把核吞下去。

Be careful not to swallow the ___stone when eating cherries.

他最近减掉了28磅。

He recently lost two ___stone.