这使得龟甲包成为了一个功能混合的包，既可以在单肩模式下快速拿取，也可以转换为双肩背包，以使得长途搬运更加舒适。
This makes the Testudo a hybrid pack where it can be in shoulder strap mode for quick access or switched over to backpack mode for much more comfort and mobility in longer hauls.
我有一个雅观的红色铅笔盒，里里有三支钢笔，两支铅笔，一块橡皮战两把尺子。每天早上，正在我上教之前，我把它放进单肩背包里。
I have a beautiful red pencil-box with three pens, two pencils, a rubber and two rulers. Every morning before I goto school I put it into my backpack.
现在没人用背包了，单肩挎包更方便些。
No one wears backpacks any more. Messenger bags are much more convenient.
他肩杠背包，浑身尘土，好象是经过长途跋涉似的。
He carried his knapsack on his shoulder, and was covered with dust, as though he had walked far.
把一只有两根带子的背包背在双肩，三脚架的皮带挂在左肩，右手拎着一只背包，通过陡峭的河岸向水边走去。
One knapsack with straps over both shoulders, tripod slung over his left shoulder 'by its leather strap, the. other knapsack in his right hand, he worked his way down the steep bank toward the stream.
他站着，把一个背包甩到左肩，另一个放在冷藏箱上。
He stood, swung one knapsack onto his left shoulder, put the other on top of his cooler.
他站着，把一个背包甩到左肩，另一个放在冷藏箱上。
He stood, swung one knapsack onto his left shoulder, put the other on top of his cooler.
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