vaccination; inoculation; immunization; immunisation
flat; even; level; plain (language, words, etc.); simple
but; however; although; though
cannot be undone; can't be recovered from
to press against each other; to huddle together
a push; another effort; one more effort
to attack; to assault; to challenge; to take on; to be bold; to be audacious
generation of heat; (attack of) fever; pyrexia
to lower (a price, tax, standard, etc.); to bring down; to demote; to withdraw (a proposal, request, etc.); to abandon; to withdraw (troops, etc.)
to live through; to survive
natural killer cell; NK cell
tumor; tumour; neoplasm; neoplasia
sneak thief; petty thief; cat burglar
sudden change; sudden turn
ramming attack; hurling oneself (at); throwing oneself into (e.g. a role); going all out
agglutination; adhesion; fusion; combination; blending; uniting
being very good at; strongest point
to be clear (of a sight, sound, colour, etc.); to be bright; to be clear-headed; to be alert; to look upbeat; to be perky; to master (a skill)
one theory; one opinion; another theory
compilation (of a text); editing; volume (of a text); completed literary work
to spell; to write; to compose; to bind (e.g. documents); to patch
as fast as the wind, as quiet as the forest, as daring as fire, and immovable as the mountain
gale; strong wind; swift wind; fresh breeze (Beaufort scale)
to fall completely silent; to become still as death
raging fire; conflagration
(surprise) attack; assault; raid; charge
great mountain; large mountain
to roar; to thunder; to become well known; to become famous; to pound (of one's heart); to throb
to sense; to infer; to gather; to pick up on; to get wind of; to perceive
(very) quick; rapid; swift; speedy; prompt; expeditious
(being angry) like a blazing fire; burning (rage)
successively; one after another
hailing each other; acting in concert; responding (to); agreement; concord
germ; germs; bacteria; something dirty or harmful; vermin
breakwater; mole; seawall; bulwark; shield (e.g. against critcism); protective barrier
burst (e.g. dam, embankment, levee); breach; collapse; washout; rupture
to give oneself to (esp. of a woman to a man); to surrender oneself to
to lose sight of; to miss