To rigidly adhere to theoretical knowledge or rules without flexibility; to be inflexible in practice, leading to difficulties in achieving success.
小李虽然学习成绩优异，但在实际操作中总是以书为御，缺乏变通，导致一些简单的问题也无法解决。
Although Xiao Li has excellent academic performance, he always rigidly adheres to textbook knowledge in practical operations, lacking flexibility, which results in even simple problems being unsolvable.
Era:
Ancient
Frequency:
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