turtle-neck

n (garment, esp a sweater, with a) close-fitting neckband that is higher than a crew neck but does not turn over like a polo-neck 高而紧的（但不翻转的）领口; 有这种领口的衣服（尤指毛衣）.

turn-up, turn...upside down, turncoat, turner, turning, turning-circle, turning-point, turnip, turnkey, turnover, turnpike, turnstile, turntable, turpentine, turpitude, turquoise, turret, turreted, turtle, turtle-dove, turtle-necked, turves, tusk, tussle, tussock, tut, tut (also tut-tut), tutelage, tutelary, tutor, tutorial, tutti-frutti, tutu, tuxedo, TV, twaddle, twang, twat, tweak, twee,