移民与关卡局 https://safetravel.ica.gov.sg 新加坡樟宜机场 https://www.changiairport.com/zh/airport-guide/Covid-19/transiting-through-airport.html https://www.changiairport.com/zh/airport-guide/Covid-19.html 新加坡航空 https://www.singaporeair.com/en_UK/sg/media-centre/news-alert/?id=kataac8r