free of例句

We'll put together a proposal, including detailed costings, free of charge.
我们将免费拟一份提案，其中包括详细的成本估算。

The performers have all offered their services free of charge.
演员们都愿意免费出演。

The leaflet is available free of charge from post offices.
宣传单可以到邮局免费领取。