机枪

In a sentence

• 这把机枪非常重，需要两个人才能操作。

  This machine gun is very heavy and requires two people to operate.

  机枪 literally means machine gun; in this sentence, it's used to refer directly to the entity itself (an object/weapon), emphasizing its physical characteristics like weight.

• 在战场上使用机枪可以有效地提供火力压制。

  Using a machine gun on the battlefield can effectively provide firepower suppression.

  机枪 here is depicted as a subject in action, representing its functional application in providing tactical advantage during combat.

• 电影中的主角用机枪击退了敌人的进攻。

  The protagonist in the movie repelled the enemy's attack using a machine gun.

  机枪 in this context is used narratively within a cinematic scenario, illustrating its role in the storyline as a tool or method of defense.