strongly monotone

例句：

1. 1.The music was so strongly monotone that it made me feel bored.
   音乐非常单调，让我感到无聊。
2. 2. His speech was strongly monotone, making it hard to follow.
   他的演讲非常单调，很难跟上。
3. 3. The painting had a strongly monotone color scheme.
   这幅画的颜色搭配非常单调。