The door swung open smoothly.

Meaning: This means that the door moved in a smooth,弧形motion to a position that allows passage.

Choice of Words: The is a definite article used to specify a particular thing. Door is a noun that refers to a hinged, sliding, or revolving barrier at the entrance to a building, room, or vehicle, or in the framework of a cupboard. Swung means to move or cause to move in a smooth,弧形motion. Open means to move something, like a door or window, so that it allows passage. Smoothly means in a smooth or even manner.

Alternative Expressions

Related Expressions