hubKK [hʌb] /hʌb/发音名词1中心、核心、重镇The city has become a hub for technology startups.这座城市已成为科技新创公司的中心。2枢纽、转运中心交通Most international flights connect through this airport hub.大多数国际航班都在这个机场枢纽转机。3集线器电脑Plug the keyboard and mouse into the USB hub.把键盘和滑鼠接到 USB 集线器上。4轮毂、毂The mechanic greased the hub before replacing the wheel.技师在装回轮子前先在轮毂上抹了润滑油。用这个字练口说→