there's no (other) way; cannot be helped; unavoidable; it's no use (doing); pointless; hopeless (person)
vigorously; at a great pace; greatly
chance; opportunity; occasion
use; utilization; utilisation; application
planned; scheduled; systematic
to get tired; to tire; to become worn out (of a well-used object); (arch.) to starve
fatigue; weariness; exhaustion; fatigue (of metal, etc.)
accumulation; accumulate; store
to maintain itself; to last; to make itself pay; to make a living; to keep going
repeated blows; striking repeatedly; barrage; consecutive hits (e.g. in boxing, baseball)
primary cause; main factor
superficial; apparent; seeming; surface; cosmetic
constraint; reserve; feeling hesitant; being afraid of troubling someone
to be nervous; to be sensitive; to worry; to be fussy; to be precise
to be submerged; to be soaked; to be pickled; to be well seasoned; to be totally immersed (in a condition, e.g. laziness)
relaxation (e.g. of muscles); becoming flaccid
bottom; sole; depths (e.g. of despair, the sea); bottom (of one's heart); limit; end
to come out (e.g. hair); to fall out; to collapse (e.g. building, floor); to be left out; to be omitted
elbowroom; leeway; room; reserve; margin; allowance
lock screen (on a computer, smartphone, etc.)
to line up; to stand in a line; to rival; to match; to equal
to have a smattering knowledge of
application; application software; application; putting into use; application; request
pains; hard work; effort; trouble; labour; labor
old person; senior citizen; the aged; the elderly
uncertain; doubtful; unreliable; unsteady; unclear; vague
social networking service; SNS; social media
extent; scope; sphere; range; span
simple; simplified; easy; plain
joint ownership; co-ownership; sharing (e.g. a viewpoint); sharing (files, devices on a network, posts on social media, etc.)
many; much; majority (of); greater part (of); mostly; mainly
will; probably; may; I think; surely; I hope
classroom; lecture room; department (in a university); class; lessons; school (for a particular discipline)
to hear; to hear by chance; to hear by accident; to catch (the sound)
there is no need to ...; never happens; there is never a time when
(not) even once; (not) ever
suggestion; hint; implication
everyone; everybody; all; everything; all
seeming; giving the appearance of; giving one the feeling of