The internal walls of my house are made of plasterboard.我房屋的内墙是石膏板做的。

an internal phone call一通国内电话

Mr Kelly posted his resignation letter to Mr Jones in the internal mailbox.凯利先生将辞职信通过内部信箱寄给了琼斯先生。

She suffered serious internal injuries.她受了严重的内伤。

The country stepped up internal security.该国加强了国内治安。

We now have a Europe without internal borders.我们现在拥有了一个不分国界的欧洲。

Emotional states define people's internal feeling of health and wellbeing.情感状态决定人们内心对健康和幸福的感受。