权威例句
FOLDING CHAIRFOLDING CHAIRFolding chairFolding chairsFolding chair and bedFolding chair mechanismPortable folding chairFolding chair with movable backrest-supporting tubesLocking device for folding chairsFolding chair with fishing pole holder and tackle boxPin and plate connectors for folding chair gangsAre portable folding chairs useful to combat orthostatic hypotension?Patients' choice of portable folding chairs to reduce symptoms of orthostatic hypotension.