Used masks are a big problem for Earth. Luckily, Australian scientists have a way... masks. This stops waste.Used masks are a big problem for Earth. Luckily, Australian scientists have ……

mandatory to wear face masks when using public transport, according to new guidelines. People are advised to put on face masks when using public transport and entering supermarkets, movie theaters ……

Our used masks are burned to generate electricity. AFPOur used masks are burned to generate electricity. AFP你扔掉的口罩都去了哪里？你扔掉的口罩都去了哪里？We’re now used to wearing masks in public during the novel ……

the Chinese example. China has another tradition of using masks,” the 71-year-old president..., said on April 3 that the global health body supports governments in using masks as part ……

the Chinese example. China has another tradition of using masks,” the 71-year-old president..., said on April 3 that the global health body supports governments in using masks as part ……

  Amid the COVID-19 pandemic, people around the world wear face masks to protect... in their closet into stylish protective gear. Many used different materials with colorful patterns to make ……

in a closed bin.“Masks are effective only when used in combination with frequent hand-cleaning... bin.“Masks are effective only when used in combination with frequent hand-cleaning ……

in a closed bin.“Masks are effective only when used in combination with frequent hand-cleaning...), and dispose (丢弃) of it immediately in a closed bin.“Masks are effective only when used ……

the US and Denmark said that people around the world are now using 129 billion face masks every month...一次性口罩已造成严重污染。一次性口罩已造成严重污染。We all wear masks during the pandemic. But we have to throw them away ……

Cooking for trainsCooking for trainsFuel made from cooking waste has been used to power an open-air... details about the biofuel (生物燃料) recently. The fuel is created from used cooking oil and the lard (猪油 ……

using 129 billion face masks every month. That is to say, we use 2.8 million masks every minute...Masks are polluting the oceans. VCGMasks are polluting the oceans. VCG人们随手丢弃的口罩正在污染地球。人们 ……

. Masks have been widely used in China since _____.A. the invention of the modern medical maskB.... Masks have been widely used in China since _____.A. the invention of the modern medical maskB ……

to wear masks.D. Wearing a mask looks funny.2. Masks have been widely used in China since _____... publiclyD. the outbreak of SARS in 20032. Masks have been widely used in China since _____ ……

designed for important occasions. For example, many girls in Cuba are now using masks as an added fashion.... For example, many girls in Cuba are now using masks as an added fashion accessory (配饰 ……

?A. Using a woven cloth instead of animal skins.B. Getting a patent on protective masks for miners.C. The invention of surgical masks in 1897.D. Using more than one layer of surgical gauze.2. What ……