He was aged between 25 and 30, with a medium build and collar-length mousy hair.

他年龄在25到30岁之间，中等体格，有一头长至衣领的暗棕色头发。

Nowadays, many young girls of medium build tend to lose weight to look more beautiful, which for them can help improve their confidence.

当下，有很多中等身材的年轻女孩倾向于通过减肥来让自己更好看，对于她们来说这样能够帮助提升自信心。

He's described as around thirty years old, six feet tall and of medium build.

他被描述为大约三十岁，身高6英尺，体格中等。

I am short and of medium build.

我是中等身材和短。

He's tall and he is of medium build.

他个子高，中等体格。