如果人生只有暖意浓浓的春天，阳光明媚的夏天，果实累累的秋天，那只有无尽的喜悦，岂不是十分单调无味？
If only the warmth of life deep in the spring, summer, sunny, fruit of the fall, that only endless joy, would not be very dull and tasteless?
在传统的教学模式中，老师就是知识的代言人，课堂气氛单调无味。
In the traditional instructional model, the teacher becomes the spokesman of knowledge in the monotonous class atmosphere.
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