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小学四年级作文500字潜水

Since the start of the pandemic, children in LAC countries have already lost on average four times more days of schooling (174) compared to the rest of the world. In a region with over 11 million cases of COVID-19 to date, most students are now at risk of missing out on an entire school year.

Since then, various activities related to the Constitution and other laws were conducted across the country around Dec 4 every year, helping the public better understand, respect and abide by laws.

Since assets in the sharing economy are fragmented－as they are owned and shared among various parties－many sharing economy platforms in China are considering whether to provide business insurance solutions for their services so that consumers can feel more confident in adopting sharing services.

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Since the China-based rail car builder accessed to the US market in 2014, CRRC has grabbed 1,359 subway car and commuter train car orders in Boston, Chicago, Los Angeles and Philadelphia. The past half year witnessed 184 subway car orders in Boston and Los Angeles, as well as 45 commuter train car deals in Philadelphia.

Since the start of the year, the US has been wielding the stick of tariffs against its trading partners worldwide. The moves have triggered tit-for-tat retaliations from countries affected, and are expected to drag down global growth by 0.5 percent, according to the International Monetary Fund.

Since September, hundreds of wildfires in Australia have killed 29 people as well as an estimated 1 billion native animals, while incinerating 2,500 homes and a total area of bushland one-third the size of Germany.

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Since February, over 30,000 people have set up virtual stores every day on Taobao, the country's largest e-commerce site allowing individuals to sell goods to customers directly, the report said.

Since last year, a flood of bikes has returned to the streets of China -- formerly known as the Bicycle Kingdom -- thanks to the development of Internet technology enabling riders to unlock and drop off public bikes with their mobile phones.

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Since Hong Kong is not a political entity but a local administrative region of China, the wording of the National Security Law is different from the Criminal Law and uses the phrase "nonpermanent residents "rather than "foreigners", he said.

Since the establishment of diplomatic ties 20 years ago, the two countries have been committed to mutual respect, trust and benefit, and have always understood and relied on each other, said Xi.