例句：
He chalked the message on the blackboard.
他用粉笔将消息写在黑板上。
The two places, he insists, are as different as chalk and cheese.
他坚持说那两个地方有天壤之别。
There was a blackboard with seven names chalked on it.
黑板上用粉笔写着7个人名。
We shall chalk up his good points.
我们将记下他的优点。
The teacher wrote with a stick of chalk.
老师用粉笔写字。