Plastic class: Computer outer covering, monitor outer covering.

塑料制品模具：计算机外壳，电脑显示器外壳。

youdao

The teacher told each child in the class to bring along a plastic bag with a few potatoes.

老师告诉班上的每个孩子带一个塑料袋和一些土豆。

youdao

Students in another class giggle as they watch a baby drool on a large plastic doll.

另一间教室的小学生看到一个婴儿的口水流到了一个塑料娃娃上时，发出了咯咯的笑声。

youdao

Some airlines have returned to using real glassware and silverware in first class, rather than plastic or paper, he noted.

NPR: TSA To Allow Small Knives, Bats, Clubs On Planes

Store this cake in a plastic cake saver or under a class cake dome at room temperature for up to 1 week.

CNN: Food Central - Recipes - Incredible Melted Ice-Cream Cake

Writers vied to see who could heap the most scorn on the allegedly boring conformity of that receding decade, drawing supercilious caricatures of middle-class men and women of the era as superficial, plastic figures.

FORBES: A Nostalgic New Year's Look At The 1950s