例句
Press the mattress gently to check its firmness.
轻轻按压床垫，检查它的软硬程度。
Teachers can maintain classroom discipline through calm firmness without discouraging students from expressing their opinions openly.
教师可以通过冷静而坚定的态度维持课堂纪律，同时不妨碍学生公开表达意见。
常用搭配
- mattress firmness｜床垫硬度
- firmness of purpose｜意志坚定
- show firmness｜表现出坚定态度
词形与相关词
firm (adj.) · firmly (adv.)
用法提示
不可数名词；既可指物体硬实，也可指态度坚定。