A bunion is a prominent bump on the inside of the foot around the big toe joint. 拇囊（炎）腫是在足部大拇指關(guān)節(jié)部位附近內(nèi)側(cè)的腫塊。 dict.cn
Throwing foot bones out of alignment and producing the characteristic bump at the joint's base, a bunion can be very painful due to pressure or arthritis, and may also lead to corns. 受到壓力或是有關(guān)節(jié)炎癥時(shí)拇指囊腫會(huì)非常的疼痛，而且可能引起雞眼。
權(quán)威例句
At the inaugural 2009 Kairos summit, Avadhany got the chance to introduce their GenShock technology, which generates energy with every bump, to Admiral William Owens, former Vice-Chairman of the Joint Chiefs of Staff. FORBES: The Kairos Society: Turning Dreams Into Businesses