chaise longue
noun (from French)a long low seat with a back and one arm, on which the person sitting can stretch out their legs 躺椅 - (also lounge chair, informal chaise lounge)(North American English)
a long chair with a back that can be straight for sitting on or be made flat for lying on 活动睡椅(可在户外竖起当座椅或平放当躺椅)
Word Originearly 19th cent.: French, literally ‘long chair’.