at once; immediately; without delay; promptly
materials; ingredients; material (for a novel, experiment, etc.); subject matter; grounds (for a decision, judgement, etc.); basis
large quantity; massive (quantity); mass (e.g. mass production, mass transit, mass destruction)
variation in color (colour); having a different color
to find; to discover; to come across; to be used to seeing; to be familiar with
to shut oneself in (e.g. one's room); to be confined in; to fill with (emotion, enthusiasm, power, etc.); to imbue with; to fill a space (of a gas, smell, etc.); to be heavy with (e.g. smoke); to be muffled (e.g. of a voice)
to (keep in) mind; to give heed to; to pay attention to
obstacle; hindrance; impediment; difficulty
to collapse; to crumble; to get out of shape; to lose one's shape; to break down; to be thrown into disarray; to crash (stock market)
impact (on); (strong) impression; effect; impact (of a ball against a racket, bat, club, etc.)
to grow up; to become an adult; to become big; to grow in size
yellow; high-pitched (voice); shrill
way (of doing); manner; method; means
to examine; to look up; to investigate; to check up; to sense; to study
redoing; doing over again
needle; pin; hook; stinger; thorn; hand (e.g. clock, etc.); pointer
alternately; by turns; one after the other
to mix; to stir; to blend
to intend; to be sure that
to change; to switch; to change over (to); to renew
one color; one kind; one tendency; being the sole mood, sentiment, focus of attention, etc.
to undo; to untie; to unfasten; to unlace; to unravel; to loosen
to get stuck with (some job); to end up with (something unpleasant)
to drain; to pour; to float (e.g. logs down a river); to set adrift; to wash away; to carry away; to broadcast
simple work; repetitive job; unskilled work; menial work
immersing oneself in; being absorbed in; devoting oneself to; giving oneself up entirely to
clear; transparent; clearing (a high-jump bar, hurdle, etc.); overcoming; getting through; clearing (the ball; in soccer); clearing (e.g. a checked box)
fault; defect; flaw; failure (in an examination); failing grade
a few hours; several hours; a couple of hours
since then; from that time; ever since
hopeless; futile; no use; beyond help; cannot be done
hard fight; close game; struggle; tight contest
to mask; to cover; to cloak; to hide; to conceal
to do over again; to redo; to start over; to remake; to resume; to recommence
please; if you would; somehow or other; one way or another; whether (or not); if
to be free; to be available
to push someone (towards); to encourage someone
one must constantly be on one's guard with ...; one cannot be too careful of ...