1、 All work and no play makes Jack a dull boy、只工作不玩耍，聪明孩子也变傻。
2、 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。
3、 dull在线翻译
4、 Some drugs dull pain、有些药能止痛。
5、 dull的意思
6、 This cheap knife dulls easily、这把便宜的刀容易变钝。
7、 He had a dull pain in the chest、他胸部隐隐作痛。
8、 His hearing was dulled by age、他的听觉因上了年纪而变得迟钝了。