實施旅遊禁令
The Omicron variant of the coronavirus poses a high risk of infection surges around the world, the World Health Organization warned on Monday.
世衛組織週一警告，Omicron變種病毒造成全球感染病例激增的風險很高。
variant(n.)變體;變種vary(v.)(使)不同;(使)呈現差異
The head of the UN health agency, Dr. Tedros Adhanom Ghebreyesus, said the variant shows that the world is now in a “perilous and precarious” situation that could wipe out hard-earned gains in a moment.
世衛組織秘書長譚德塞表示，這個變種病毒顯示世界現在處於「危險和不穩定」的境況，可能會在瞬間抹去來之不易的成果。
perilous(adj.)非常危險的peril(n.)危險=dangerprecarious(adj.)(情勢)不穩定的;不確定的;危險的wipe out徹底摧毀;殲滅in a moment=in an instant瞬間
COVID-19 is “not done with us,” he warned, adding that the pandemic would not end until every nation has access to vaccines.
譚德塞警告，新冠疫情「還沒有結束」，並補充說，除非每個國家都能取得疫苗，否則疫情不會結束。
be done with…完成…、結束…、受夠了have or gain access to…能夠取得vaccine(n.)疫苗
The WHO called on its 194 member states to speed up vaccination of high-priority groups and to ensure contingency plans are in place to maintain essential health services in expectation of increased case numbers.
世衛組織呼籲其194個成員國加快對高優先群體的疫苗接種，並確保應變計劃到位，以維持必須醫療服務，以應對病例數增加的情況。
call on sb. to do sth. 呼籲某人做某事=urge sb. to do sth.priority(n.)優先考慮的事情give priority to ~優先考慮某事first or top priority首要之務;最優先考慮的事in expectation of…以應對…=in anticipation of…in preparation for…為…做好準備
The Omicron variant was first reported to the WHO on November 24 from South Africa.
南非於11月24日首度向世衛組織通報發現Omicron變種病毒。
The organization said the variant, with an unprecedented number of spike protein mutations, “may have a high likelihood of immune escape from antibody-mediated protection” and therefore could be highly transmissible.
世衛表示，該變種病毒的棘蛋白突變是前所未見的多，可能會逃脫疫苗和恢復期免疫反應的保護，因此可能具有高度傳染性。
unprecedented(adj.)史無前例的;空前的;絕無僅有的spike protein棘蛋白mutation(n.)mutate(v.)變異immune(adj.)免疫的antibody(n.)抗體mediated經由…;以…為媒介transmissible(adj.)會傳染的=infectious=contagious
It is probable that Omicron may further spread on a global scale, the WHO cautioned.
世衛警告說，Omicron可能會在全球進一步傳播。
on a…scale以…的規模caution(v.)告誡;警告
Several countries including Canada, the UK, Portugal, Belgium and the Netherlands have reported cases of the new strain.
包括加拿大、英國、葡萄牙、比利時和荷蘭在內的幾個國家都傳出Omicron的病例。
strain=virus strain病毒株
Even more countries have already imposed travel restrictions, including shutting borders on South Africa and its neighboring countries.
更有許多國家已經實施了旅遊禁令，包括對南非及其鄰國關閉邊界。
impose(v.)實施=carry outrestriction(n.)限制