toilet; restroom; lavatory toire 

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toilet paper toiretto peepaa 
 toiretto: toilet peepaa: paper
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I want to go to the restroom. Toire ni iki tai no desuga. 
 toire: rest room, toilet iki: go tai: want
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Where's the restroom? Where is a toilet? Toire wa doko desu ka? 
 toire: rest room, toilet doko: where
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Wait a minute. I need to go to the restroom. Toire ni iku node, chotto matte ite kudasai. 
 toire: rest room, toilet iku: go chotto: a minute
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