n.[医](放于人面部需通过挤压来帮助呼吸的)气囊；制袋材料
动词bag的现在分词形式.
We had a good bag that day. 那天我们猎获甚多。
He stuffed the apples into the bag. 他把苹果塞进袋子里。
She opened the bag of goodies. 她打开了那袋糖果。
Anyone seen carrying boxes, bags, or whatever, was stopped by the police. 谁如果带什么袋子、盒子什么的，被警察看见了都要被叫住。
