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(A is from X company and B is from Y company.)
A : ® Ask B about the strong points of his company's new cup.
B : © Explain to A that the cup can keep drinks at the same temperature for one hour.
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(A is from X company and B is from Y company.)
A : ® Ask B how long his company's portable CD player can keep playing. B : © Explain to A that it can play ten hours longer than the old model.
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