n 三明治，夹心面包 (two pieces of bread with some other food between them)[C]：a cheese/chicken/ham～乳酪/鸡肉/火腿三明治;an open-faced-～单片面包的三明治;a～cake/filling/bar/box 三明治蛋糕/夹心/柜台/盒;the～course 教学与实习交替进行的课程;a～board 挂在身体前后的广告牌;

vt 夹在中间(place or press sb or sth between two objects，etc)[T+n，T+n+prep (between)]：The child was～ed in(between his parents). 那个孩子被夹在(他父母)中间。I was～ed between two large women on the train. 我在火车上被夹在两个大块头妇女中间。His car was～ed between two lorries. 他的汽车被夹在两辆卡车中间。