The stool had a torn, red plastic seat.

这条无靠背凳子有一个破了的、红色的塑料坐部。

《柯林斯英汉双解大词典》

youdao

Red surface decoration: other red plastic material.

红色饰面：其他为红色塑料材质。

youdao

Locals joke that Yemeni trees are actually blue and red, the color of the plastic bags that you get when you buy qat, a mildly narcotic leaf, and the Yemeni national past time.

VOA: standard.2010.04.01

There was juice in Styrofoam cups and potato chips on little red plastic plates.

NEWYORKER: The Hot Spotters

The red plastic caps don't stay on the cans and there's no snap to hold the auxiliary spray tube.

FORBES: Johnny One-note

Stalking other profiles has unveiled an armada of profiles littered with red plastic cups, and the shenanigans they imply.

FORBES: Private Profiles Finish Last