在大多数国家，握手是一种传统的问候方式。

In most countries, a handshake is the ___conventional way to greet someone.

该国承诺只使用常规武器进行自卫。

The country pledged to use only ___conventional weapons for self-defense.

他的着装风格过于传统，缺乏新意。

His dressing style is too ___conventional and lacks originality.