(1)The smart umbrella can tell you the weather and the time.
(2)If it is going to rain,the smart umbrella will send a message to your smartphone.
(3)When you leave the smart umbrella on a bus,it will send you a warning message.
(4)You can by a smart umbrella from a department store now.
(5)The new umbrella looks cool but it is expensive.
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發布:2024/4/20 14:35:0組卷:0引用:1難度:0.0