“用石子”造句
那男孩
用石子掷击小流氓的背脊.
The boy gave the bully a pelt on the back with a pebble.
男孩子喜欢在湖面上
用石子打水漂.
The boys liked to skip stones on the lake.
他们也许是
用石子来作计算的, 因“calculus ” 这个字原意是 “ 石子 ”.
They may have used pebbles to calculate, for the word " calculus " means " pebble ".