backpack
柯林斯词典
1. N-COUNT A backpack is a bag with straps that go over your shoulders, so that you can carry things on your back when you are walking or climbing. 双肩包
返回 backpack
1. N-COUNT A backpack is a bag with straps that go over your shoulders, so that you can carry things on your back when you are walking or climbing. 双肩包