one in a thousand 当“难得”讲时的例句？谢谢

难得: [ nán dé ]

1. seldom
2. rare
3. hard to come by

其它相关解释:
<one in a thousand> <rarely> <hardly ever>

例句与用法:
1. 他难得称赞你一句。
Only on very rare occasions does he give you a word of praise.

2. 他真的很难得失信。
Rarely did he fail to keep his promise.

3. 他们难得清闲.
They're seldom at leisure.

4. 这个岛难得有船停靠.
The island is seldom, if ever, visited by ships.

5. 她难得看电影.
She seldom, if ever, goes to the cinema.

6. 他那难得一见的微笑在他死板的脸上平添一些生气.
A rare smile lit up his stern features.

In this accident, the little baby can still live one in a thousand.
在这次事故中，这个小孩生还的机会很渺茫。

She escaped the accident with the chance of one in a thousand.