连裤紧身衣(常有袖) a piece of clothing that fits closely over the whole body from the neck to the ankles, often including the arms, worn for example by dancers
(舞蹈演员经常穿的)紧身内衣,连体紧身衣 A body stocking is a piece of clothing that covers the whole of someone's body and fits tightly. Body stockings are often worn by dancers.