algae; waterweed; seaweed; duckweed
20 years old; (arch.) twenty
lucky day; auspicious day; unspecified day of the month (used to obscure the date a letter, invitation, etc. was written)
attaching (documents, etc.); appending; affixing
National Institute of Infectious Diseases; NIID
conformity; compatibility; adaptability; congruity; congruence
organization; organisation; forming
research division; research club (e.g. at school, university)
sterilization; sterilisation
to write to; to send word to; to hand over (official business)
inevitable; inescapable; unavoidable
mental derangement; insanity; psychosis
analogy; analogical reasoning; analogical inference; analogy
precautions; warnings; matters to be attended to; things to note; suggestions; hints
automatic; intransitive verb
self-checking; self-diagnosis
to affect adversely; to have a negative influence (on)
generation of heat; (attack of) fever; pyrexia
high (government) official
disorderly; messy; absurd; unreasonable; very; extremely
not only ... but (also); as well as ...
coping method; approach; how to deal with (problem, etc.)
problems caused by old people; harm to society by gerontocracy
prime minister (as the head of a cabinet government); premier; leading; overseeing; leader
global scale; worldwide scale
to attract attention; to come into the limelight
(making something a) political issue
foreign country; other country; another province; strange land; alien land
promotion (e.g. sales, etc.); marketing campaign; campaign (election, membership, enrolment, fund-raising, etc.); drive; military campaign; military action
(political) administration; political power