便携式DVD具有高品质的音质和画面，是外出旅行者的好伴侣。
Portable DVD players can offer quality sound and picture for the mobile travellers.
双肩包的主要优点是方便携带，解放双手，为外出提供了方便。
The main advantages of bag is convenient to carry, freeing both hands, and provides convenience for going out.
双肩包的主要优点是方便携带，解放双手，为外出提供了方便。
The main advantages of bag is convenient to carry, freeing both hands, and provides convenience for going out.
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