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Brazil reported 346 deaths from COVID-19 in the last 24 hours, bringing the country's death tally to 4,016, with 58,509 confirmed cases, the country's health ministry reported on Saturday.

Businesses manufacturing or selling products that do not comply with the new standards will be investigated strictly, and violators will be ordered to stop manufacturing or selling unqualified products and pay fines. They could also face revocation of business licenses or criminal penalties.

Bridget Carey, a sci-tech reporter with CNET, was quoted by the Paper.cn as saying people who are hearing-impaired, usually caused by aging or excessive use of earphones, will find it hard to hear "Yanny".

Business is by nature profit-oriented, but those from China have shown themselves particularly willing to help empower regional economies, in so doing winning acceptance and approval, according to those interviewed at seven Chinese companies operating in six Latin American countries by Xinhua.

Both planes flew erratically with sharp fluctuation in altitude as the pilots attempted to regain control.