outline its preliminary findings
anecdotal/ˌænɪk'dotl/ reports that emerged from South Africa
how perilous/'perɪləs/ and precarious/prɪ'keərɪəs/ our situation is
strengthen our border control measures 加强边境控制措施
after undergoing quarantine/'kwɒrəntiːn/ for as few as three days
quarantine： n & vt；在接受隔离三天后
close their borders to foreign travellers
Japan moves to ban foreign visitors (in an attempt) to limit spread of heavily mutated strain.
Scientists raced to understand the effect of its multiple mutations on the severity of disease and its effect on natural and vaccine-caused immunity.
scientists stressed it was too early to tell.
it would take at least two weeks to produce reliable data on immune responses to Omicron.
The Japanese policy change followed a rush among countries to contain the spread of the variant.
He has said the travel bans were “completely unjustified”, adding that there was no scientific rationale/ˌræʃə'nɑːl/ for the restrictions.
注意 adding 的使用；rationale 表示逻辑依据，基本原理，根本原因。
The discovery of the variant has hit stock markets, with global equities and oil prices falling the most in a year last week.
with xxx falling the most in a year
European stocks advanced after a sell-off at the end of last week, as investors settled in for a prolonged period of uncertainty over the pandemic.
sell-off 抛售， advance 用来表示上涨，prolonged 持续很长时间的
Analysts cautioned that markets would remain volatile, however, as investors waited for more information on the potential of the new variant to alter the path of economic growth.
warn 比 caution 语气强烈， volatile 不稳定的， alter 改变；
Over the course of this year we’ve had an impressive equity rally, with constant new highs printed, so when we have had pullbacks there’s been money on the sidelines to buy the dip.
注意 over the course of this year， equity rally 股市反弹，sidelines 原意是球场边线，buy the dip 购买下跌。