He staggered a little under the weight of his backpack.
他身上的背包压得他有点步履蹒跚。
迈克有一个新的背包。
我的背包丢了。
它是我的双肩背包。
He was also carrying a backpack or wearing a backpack.
这个人还带着一个背包，或者说是背着一个背包。
A strong wind of dust storms can carry heavy objects, so you should try to stay low, and close to the ground, and protect your head with your arms or a backpack.
强劲的沙尘暴可以卷起重物，所以你应该尽量保持低姿态，靠近地面，并用你的手臂或背包保护你的头部。
Their amazing work is a big backpack.
他们惊人的工作成果就是一个大背包。
You can put your phone inside a backpack.
你可以把手机放在背包里。
Two high school students from Canada have invented a magic backpack.
两名来自加拿大的高中生发明了一种神奇的背包。
When it is folded, it can be carried on the shoulder as a backpack.
当它折叠起来时，它可以作为一个背包放在肩膀上。
I try to cover bare leg with backpack.
我试图用背包来盖住我的光腿。
He was also carrying a backpack, or wearing a backpack.
这个人还背着一个背包。
The traditional backpack with a difference—it's waterproof.
这个跟传统背包不同—它防水。
An unattended backpack was found in a rubbish pile.
在垃圾桶里发现了一个无人看管的背包。
He had a small green backpack slung over one shoulder.
他把一只绿色小背包搭在一边肩上。
Would you put down your backpack?
你能放下你的背包吗？
Today's backpack show was fun.
今天的背包秀很有趣。
Our uncle's backpack was half empty.
我们叔叔的背包有一半是空的。
A heavy backpack forces the muscles and spine to balance the unequal weight.
一个沉重的背包迫使肌肉和脊椎来平衡那些不均的重量。
You should be able to move your hands between the backpack and your back.
你应该能够在背包和背部之间移动你的手。
Remember when lifting a backpack, or anything, to lift using the arms and legs and to bend at the knees.
记住，当提起背包或其他东西时，要用胳膊和腿提起，膝盖弯曲。
I ran downstairs ahead of him to throw my backpack in his old white diesel Mercedes, and there it was: a big, glittery rainbow flag sticker.
我跑下楼越过他，把我的背包扔进他老旧的白色柴油梅赛德斯里，然后我看见：一个巨大、闪闪发光的彩旗贴纸。
我要背包旅行去巴黎。
Once kids started carrying book bags, that bulky traditional lunch box was hard to fit inside."But you can't just throw a sandwich in a backpack ," Jayasekara says.
一旦孩子们开始背书包，那种笨重的传统午餐盒就很难装进去了。“但你不能只往背包里扔个三明治。”贾阿塞卡拉说。
我的双肩背包丢了。
He lay back on the grass using his backpack as a pillow.
他用背袋当枕头仰卧在草地上。
She found a seat, stowed her backpack and sat down.
她找到一个座位，把背包放好，坐了下来。
这个背包好重！
Would you pack your backpack, please?
请你收拾一下背包好吗？
Could you pass me the backpack, please?
请你把背包递给我，好吗？
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