(practical) experience; personal experience; hands-on experience; first-hand experience
don't be absurd; that's out of the question; nonsense; don't mention it
needle; pin; hook; stinger; thorn; hand (e.g. clock, etc.); pointer
to say; to speak; to tell; to talk
(power of) understanding; comprehensive faculty
seeing with one's own eyes; witnessing
divide into four pieces; one fourth
hardly any; almost nonexistent; very little
standard; basis; criterion; norm; reference; datum
approximately; about; promise; appointment; shortening; reduction
calculation; reckoning; count; forecast
exactly; surely; right then; just then; just (about to); on the verge (of doing or happening)
dreadful; terrible; horrible; fearsome; formidable; awesome
fungus; germ; bacterium; bacillus
when it comes to ...; where ... is concerned; if it's the case that ...; if it turns out that ...; if it's true that ...
not yet known; unknown; strange
endemic disease; local disease
to attack; to assail; to succeed (someone in a post, role, etc.); to make a sudden visit
half; biracial person (esp. half-Japanese); person of mixed parentage
treatment; reception; service; working conditions; salary; pay
within; inside of; less than
receiving an official appointment; being appointed (to the post of)
choices; alternatives; options
outbreak of an illness; onset of an illness; appearance of symptoms
occupying; having (an area) all to oneself; military occupation; possession; capture
to result in death; to lead to death; to be fatal (e.g. disease)
isolation; segregation; separation; quarantine
resistance (e.g. to antibiotics); tolerance (e.g. drug tolerance)
to make; to produce; to prepare (food); to brew (alcohol); to raise; to grow; to till
mainland; the country proper; native country; country where one was born; pure land; Buddha realm
air transport; air lift; airlift
using as an intermediary; through
it is assuredly (that)...; can say with confidence that it is...
not limited to; not just ...
filtration; filtering; percolation
concentration (e.g. of a solution); enrichment; condensation
mixing; mixture; meld; miscegenation