at home and abroad是什么意思？请造个句子。

这是“国内外”的英文固定搭配。
at home and abroad

除了你问的这一种说法以外，还有两种：
1. both here and abroad
2. home and abroad


【例句与用法】
1.Should the West root unreservedly for Soviet success? Or should Western economic support turn on Soviet political behavior at home and abroad? Western politicians weight the choice, but it's a false choice: the leverage doesn't exist.
西方应该毫无保留地支持苏联使其成功吗？或者西方的经济支援是否应视苏联在国内外政治行为来决定？西方政客们权衡他们的选择，可是这项选择是错误的。西方对苏联的制衡并不存在。

2.At the news he sped home from abroad.
听了这消息，他立即从海外赶回国来。

3.Chinese silk sells well at home and abroad.
中国丝绸畅销国内外。

4.He is better known abroad than at home.
他在国外的名气比国内大。

5.I dislike feeling at home when I am abroad.
我不喜欢在国外的时候象在老家一样。

6.Complicated and volatile economic environment both at home and abroad
复杂多变的国内经济环境

7.A lion at home, a mouse abroad.
在家凶如狮，在外却如鼠。