tóu xuán liáng , zhuī cì gǔ
lit. with his head attached to a beam and stabbing his thigh with an awl (idiom)
fig. to study assiduously and tirelessly
tóu xuán liáng , zhuī cì gǔ
lit. with his head attached to a beam and stabbing his thigh with an awl (idiom)
fig. to study assiduously and tirelessly
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