negative; passive; half-hearted; unmotivated
key; lock; key (to a problem); clue
to melt; to thaw; to fuse; to dissolve
disassembly; dismantling; factorization; decomposition; resolution; deblocking
mostly; nearly; practically; well-nigh; almost invariably; all but
curie (unit of radioactivity)
a few years ago; some years back
extraordinary; preposterous; outrageous; absurd
clear; precise; definite; distinct
further; farther; furthermore; all the more; even more
because of; on account of; regarding; per; apiece
ground-breaking; revolutionary; unprecedented; epoch-making
from the chemical point of view
normal temperature; room temperature; constant temperature; fixed temperature
under (influence, control, conditions, etc. of); during (war, occupation, etc.)
suspicious; dubious; unreliable; indecent; unseemly
reduction by half; halving
cubic centimeter; cubic centimetre
eruption; volcanic eruption
firing (esp. a rocket or missile); launching; shooting; ejaculation
(not) in the least; (not) at all; (not) a bit
exorbitant; outrageous; ridiculous; absurd; excessive; inordinate
throughout; over a period of ...; over a span of ...
turn (in line); order of things; sequential order
income; receipts; revenue
expenditure; disbursement; expenses
to take in; to bring in; to capture (e.g. image); to import; to win over; to please
small quantity; small amount; narrowmindedness
containing; keeping; comprehending; entertaining (an idea)