shall ...; to assume; to suppose
to come together; to merge; to fit; to match; to be profitable; to be equitable
avenue; street; coming and going; street traffic; flow (of water, air, etc.); transmission (of sound); reach (e.g. of voice)
the past; bygone days; one's past (that one would prefer remained secret); past (tense); preterit; previous life
interference; intervention; meddling
to go upstream; to go back (in time, to origin); to date back to; to trace back to
modern times; the modern age; this day and age
exactly; precisely; just; as if; as though; quite
riddle; puzzle; enigma; enigmatic; mysterious
coming flying in (migratory birds, airborne sand, pollen, etc.); coming by airplane
research establishment; research institute; laboratory
to run away; to flee; to make off; to start to run away
contortion; distortion; warp; kink (in one's character); twist
invasion; incursion; raid; aggression; intrusion; trespass
to chase; to run after; to follow (a set order, a trend, etc.); to drive out; to get rid of; to drive (e.g. a herd)
duty; function; office; mission; task
to order; to command; to appoint
(in) the middle of; (in) the midst of; (in) the course of; (at) the height of
control (of a machine, device, etc.); control (over an opponent, one's emotions, etc.); governing; management
to be effective; to take effect; to work; to function well; to be possible (to do, use, etc.); to be able to
resistance; opposition; reluctance; repulsion; resistance; drag
to grow restive; to begin to act violently
development; evolution; expansion; spreading out; expansion (of an algebraic expression); development (of a three-dimensional shape)
severe; harsh; hard; cruel; rigorous
to carry to extremes; to go to the end of something; to investigate thoroughly; to master
to force; to compel; to coerce; to press; to impose
to refuse; to reject; to decline; to prevent (from doing); to deny (e.g. access); to block
to shut; to close; to block (a street, entrance, etc.); to shut in (with snow, ice, etc.); to shut off; to consume (with negative feelings)
to repel; to drive away; to repulse; to reject
observation; survey; measurement; opinion; prediction; thinking
on the occasion of; circumstances; juncture
to produce; to yield; to cause; to result from; to arise; to be generated
attachment (esp. to things); love; affection
in that manner; like that
trouble; bother; trouble; difficulty; care; attention
substance; essence; entity; subject; content; reality