inseparable as body and shadow 形影不离

“形影不离”，汉语成语，意思是像形体和它的影子那样分不开（follow each other like body and shadow），形容彼此关系亲密，经常在一起。可以翻译为“inseparable as body and shadow，be never apart”。

例句：

这条狗与主人形影不离。

The dog is his master’s shadow.

他们近来形影不离。

You never see them apart these days.