有效防範Omicron變異株
With the omicron variant of COVID-19 spreading rapidly, the Centers for Disease Control and Prevention is looking to update its mask guidance to encourage people to opt for the highly protective masks.
Omicron變異株傳播迅速，美國疾病管制與預防中心考慮更新口罩指引，鼓勵民眾選擇防護力較強的口罩，
update(v.)(n.)更新opt for=(優先)選擇
This has caused a surge in the demand for N95 and KN95 masks as well as the mask prices.
使得N95與KN95口罩的需求量大增，價格也因此水漲船高。
surge(n.)(v.)激增demand(n.)需求(量)
A pack of 40 KN95 masks on Amazon shows that the price has tripled over the past month.
過去一個月以來，亞馬遜網站上一盒40片裝的KN95口罩價格漲了兩倍。
triple(v.)變成三倍;增加兩倍
The item increased from $26.99 in December to $75.99 in January.
該商品12月份的售價為26.99美元，一月份時漲至75.99美元，
decrease(v.)減少
A pack of 35 N95 masks can cost around $72.
而一盒35片裝的N95口罩要價72美元。
Americans are calling on the government to impose price control on the masks.
美國民眾紛紛呼籲政府介入控制口罩價格。
call on sb. to do sth.=呼籲某人做某事
Jeff Zients, the White House’s COVID-19 response coordinator, said that the supply of masks is no longer a concern as there are 750 million masks available for health care workers and first responders in the national stockpile.
白宮新冠肺炎應對協調員傑弗里·齊恩特表示口罩供應無虞，政府儲備了7.5億個口罩供醫護人員與急救人員使用。
supply(n.)供給(量)
Also, the Biden administration is planning to distribute 400 million N95 masks through pharmacies and community health centers.
此外，拜登政府計劃透過藥局與社區健康中心發放四億個N95口罩。
distribute(v.)分發;發放
On January 12, CDC director Rochelle Walensky ruled out a formal guidance change, saying that the agency is planning to update its website with more information about different types of masks and their effectiveness as well as tips on masking.
美國疾病管制與預防中心局長羅雪爾·瓦倫斯基於1月12日排除了更新口罩指引的可能性，她表示當局將計劃更新網站上有關口罩種類與其有效性以及配戴方式的資訊。
rule out=排除
The current guidance emphasizes that the best mask is the one that is worn consistently and correctly without recommending any specific material over another.
該指引強調只要是持續正確配戴的口罩即是防護力最佳的口罩，當中並無建議哪一種材質的口罩更好。
consistently(adv.)一貫地;一致地recommend(v.)推薦;建議