bilateral

/baɪˈlætərəl/

having identical parts on each side of an axis

中文释义：双边的；两侧的

The two countries signed a bilateral trade agreement to boost economic cooperation.

两国签署了一项双边贸易协定以促进经济合作。

Bilateral symmetry is common in many animals, including humans.

两侧对称在许多动物中很常见，包括人类。