我妈妈觉得智能手机比普通手机更有用。
My mum thinks a smartphone is more useful than a normal phone.
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more英 /mɔː/|美 /mɔr/
useful英 /ˈjuːsfʊl/|美 /ˈjusfʊl/
My mum thinks a smartphone is more useful than a normal phone.