sleeping bag的复数形式怎么写？

sleeping bag的音标：sleeping bag的英式发音音标为：['sli:pɪŋ bæɡ]sleeping bag的美式发音音标为：['slipɪŋ bæɡ]...

n.（野外用的）睡袋...

I was woken up by someone grabbing hold of my sleeping bag.有人猛地抓住了我的睡袋，把我惊醒了。Bring a sleeping bag and foam mat.带上睡袋和泡沫垫。I unrolled my sleeping bag as usual.我像往常一样铺开我的睡袋。...