这座城市以其历史上的种族紧张关系而闻名。

The city was known for its history of ___ethnic ___tension.

两国之间的紧张关系日益加剧。

There are growing ___tensions between the two countries.

即使还是个孩子，我也能感觉到父母之间的紧张关系。

Even as a child, I could feel the ___tension between my parents.