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 / ____||   / _ \\      ___     / _ \\   /_   _// 
/ //---`'  / //\ \\    /   ||  | / \ ||  `-| |,-  
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  `----`  `-`   `-`     -|_||   `---`      `-`'   
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發送短信 : Indoor autonomous robot navigation by using visually grounded semantic instructions