common sense; good sense; common knowledge; general knowledge; common practice; accepted practice
hurdle; hurdle race; hurdles; hurdle; obstacle
perfect score; full marks; perfection; grading out of a hundred; grading on a scale of 0 to 100
self-satisfied look; triumphant look; smug face; shit-eating grin
white blood cell; leukocyte; leucocyte
increase; multiplication; propagation; proliferation
ingredient; component; composition
extraction; abstraction; selection (from a group); sampling
to mix; to stir; to blend
left and right; right and left; (asserting) control; influence; one's attendants; people accompanying one
to knock (ideas) against each other; to present competing ideas; to have a lively exchange of ideas; to smash together; to crash into each other; to throw at each other
specialization; specialisation; differentiation
obstruction; impediment; hindrance; inhibition; blocking; check
hemopoietic function; haemopoietic function; hematopoietic function; haematopoietic function; blood-forming functions
influence; effect; impact
venomous snake; poisonous snake
convenient; useful; finding useful; coming in handy; (priceless) treasure
human experiment; human experimentation; experiment on a living person
arranged; taken care of; settled; completed; finished
loose (of clothing); loose-fitting; plenty (of pouring a liquid); sloshing about (e.g. of water in one's stomach)
needle; pin; hook; stinger; thorn; hand (e.g. clock, etc.); pointer
trace; tracks; site; remains; scar
discovery; detection; finding
safety; security; safely; without incident; good health; inaction
feeling; sensation; tentative; rough; interjection
peace of mind; relief; (sense of) security; safety; assurance; confidence
decider; person who decides; decisive factor; clincher; key
dissatisfaction; discontent; disapproval; objection; complaint; protest
experiment; experimentation
1,000,000; one million; million; many
reflection; reconsideration; introspection; regret; repentance; remorse
sexual excitement; estrus; oestrus; rut; (coming into) heat
easy; easygoing; carefree; happy-go-lucky; optimistic; leisurely
to meet; to face someone; to co-star; to appear together; to be matched; to face against