Singapore unveils army of multilingual cleaning robots in bid to spruce up city

Hundreds of “friendly” robots that speak multiple languages and sing are being rolled out across hi-tech Singapore, to help clean the city state’s hotels, shopping malls and government buildings.They scrub, mop, vacuum and sweep autonomously, and can entertain by rapping in English.The robots speak all four of multi-ethnic Singapore’s official languages – English, Malay, Mandarin, and Tamil – plus Japanese and “Singlish”, a local patois that mixes English with words from the myriad local…