椅背；椅子靠背
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椅背；椅子靠背；椅背；椅子靠背
the back part of a chair that supports your back
He leaned against the chair back and closed his eyes.
他靠在椅背上,闭上了眼睛。
椅背；椅子靠背
the back part of a chair that supports your back
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Dictionary facts from AI_SUPPLEMENT.