在街上看见有人饿晕是很平常的事。It's commonplace to see people collapsing from hunger in the streets.它就是那种平常的木门。It's just your average wooden door.饭菜没什么特别, 挺平常的.There was nothing special about the meal ; it was average....

“平常的”的英语可以翻译为：common，everyday，[经] ordinary，habitual，household ...