这是一把半自动手枪。

It's a ___semi-automatic pistol.

这台半自动咖啡机需要你手动放入咖啡胶囊。

This ___semi-automatic coffee machine requires you to insert the coffee capsule manually.

猎人用半自动步枪打猎，每次扣动扳机只能发射一颗子弹。

The hunter uses a ___semi-automatic rifle for hunting, firing one bullet per trigger pull.