形容词
1. It's very dull today but I don't think it'll rain.
今天天气很阴暗，但我认为不会下雨。
2. All work and no play makes Jack a dull boy.
只工作不玩耍，聪明孩子也变傻。
3. He had a dull pain in the chest.
他胸部隐隐作痛。
及物动词
1. His hearing was dulled by age.
他的听觉因上了年纪而变得迟钝了。
2. dull在线翻译
2. Some drugs dull pain.
有些药能止痛。
不及物动词
1.
1. This cheap knife dulls easily.
这把便宜的刀容易变钝。