turning-circle

n smallest possible circle in which a vehicle can turn （车辆的）回转圆.

turn out that (to be(do)), turn out to be, turn over, turn round (also turn around), turn sb's blood cold, turn sb/sth down, turn sth inside out, turn to, turn up, turn-about, turn-around (also turn-round), turn-off, turn-on, turn-out, turn-round, turn-up, turn...upside down, turncoat, turner, turning, turning-point, turnip, turnkey, turnover, turnpike, turnstile, turntable, turpentine, turpitude, turquoise, turret, turreted, turtle, turtle-dove, turtle-neck, turtle-necked, turves, tusk, tussle, tussock,