单词 dull 的意思和用法

单词 "dull" 是一个形容词,具有多个不同的含义和用法,
以下是其中一些常见的意思和用法:
1. 无趣的、乏味的:
这个电影真的很无聊,情节毫无亮点。
This movie is really dull; the plot has no excitement.
2. 呆板的、不活泼的:
他的演讲很乏味,没有激情。
His speech was dull and lacked enthusiasm.
3. 不锋利的:
这把刀已经变钝了,需要磨快。
This knife has become dull and needs sharpening.
4. 阴沉的、灰暗的:
天空变得阴暗,乌云密布。
The sky turned dull with thick clouds.
5. 迟钝的、理解力差的:
学生的表现很迟钝,难以理解课程内容。
The students are dull and have trouble understanding the course material.
6. 沉闷的、寡淡的(通常用于颜色或光泽):
她穿了一件灰色的沉闷外套。
She wore a dull gray coat.
7. 减弱、消退(指声音、疼痛等):
他的声音渐渐消退,变得很轻。
His voice gradually dulled and became very soft.