natural; reasonable; obvious; usual; common; ordinary
impossible; unlikely; improbable
unflaggingly; steadily; untiringly; knocking; tapping; clicking
to pile up; to accumulate
to become possible; to become able to (do)
to give birth; to bear (child); to lay (eggs); to produce; to yield; to give rise to
ordinary; common; free of charge; unaffected; as is; only
spring; spring (in one's legs); bounce; springboard; impetus
time; thyme; time out (e.g. in sport)
to reach the point that; to come to be that; to turn into
regarding; in; to; towards; with regards to
remnant; fragment; fraction; odd sum; halfway; half-hearted
to follow another's example
to do completely; to do accidentally; to do without meaning to; to happen to do
achievement; attainment; accomplishment; realization
great; excellent; very troublesome; awful; tiring; tough
(swimming) pool; pool (billiards); pool (together)
bathing suit; swimsuit; swimmers
regrettable; vexing; upsetting; unthinkable; wholly unexpected
to underrate; to belittle; to look down on; to despise
to receive; to get; to eat; to drink; to be crowned with; to wear (on one's head)
to pretend to be tough; to put on a brave front; to whistle in the dark; to bluff
the same kind; accomplice; partner
gotcha; alrighty; got it; OK
constraint; reserve; feeling hesitant; being afraid of troubling someone
tightly (holding on); firmly; strongly (built); solidly; properly; well
goal; target; aim; mark; sign; landmark
to face; to go towards; to head towards
thanks; gratitude; manners; etiquette; bow; reward
to receive favor (favour); to be much obliged to someone; to be indebted
to ferry across (e.g. a river); to carry across; to lay across; to build across; to hand over; to hand in
bag; sack; skin of an orange (and other like fruits); dead end; plot of land surrounded by water
used (ticket, stamp, etc.); spent (fuel, battery, etc.)
female high-school student
to kill; to slay; to suppress; to block; to suppress (a voice, feelings, etc.); to hold back
midterm (mid-semester) test or exam
won't; hasn't; isn't; won't you
something; something or other; so-and-so; somehow; anyhow; one way or another
to summon; to call (e.g. phone); to convene; to invoke (e.g. subroutine); to call; to open (e.g. a file)
custom; practice; said; aforementioned; instance; example
reality; actuality; hard fact