n.類似風(fēng)琴的六角形的樂(lè)器
v.（像）折起
Tango dancers take their steps, accompanied by a musician with a concertina. 探戈舞蹈者記錄他們的步幅，陪伴的是一位音樂(lè)家用一六角形風(fēng)琴。
The lorry had concertinaed after crashing into the tree. 卡車撞到大樹后摺在一起。
