to stop (moving); to come to a stop; to stop (doing, working, being supplied); to come to a halt; to alight; to perch on
difficult to ...; hard to ...
to live; to exist; to make a living; to subsist; to be in effect; to be in use
good; advantage; sake; purpose; consequence; result
red blood cell; erythrocyte
necessary; needed; essential; necessity; need; requirement
life; life force; lifetime; lifespan; most important thing; foundation
to tie; to fasten; to hitch; to secure (trust, patronage of customers, etc.); to keep (an employee, someone's interest, etc.); to save (someone's life)
while; during; while; although; all; both
to search for; to look for; to hunt for; to search (a house, pocket, etc.); to search through; to rummage in (e.g. a drawer)
to be found; to be discovered
to leave (behind); to leave (undone); to not finish; to save; to set aside; to leave (to someone, esp. after one's death)
hand; arm; forepaw; foreleg; handle; hand; worker
human leukocyte antigen; HLA
ah!; oh!; yes; indeed; aah; gah
terrible; dreadful; amazing (e.g. of strength); great (e.g. of skills); to a great extent; vast (in numbers)
thesis; essay; treatise; paper; article
study; research; investigation
(a) step; one step; level; stage; small degree; small amount
advance; moving forward; progress
chemical substances; chemicals
by means of; due to; because of; according to
cell; cell (in an organization, esp. a communist party)
about 80%; almost certainly; mostly
to be seen; to be in sight; to look; to seem; to come
to come (spatially or temporally); to approach; to come back; to do ... and come back; to come to be; to become
low (rank, degree, value, content, quality, etc.); low (position); close to the ground; short (height); deep (voice); in a low key
to determine (esp. a culprit or underlying cause); to pin down; to ascertain; (arch.) to stab to death
you have only to; all you have to (do); all that's required; as long as; if only
present stage; current phase; current rank; present grade
enough; sufficient; sufficiently; fully; division into ten
to be able (in a position) to do; to be up to the task; to be ready; to be completed; to be made; to be built; to be good at
be; is; did; (have) done; please; do
at once; immediately; right now
arrangement; preparations; search (by police)
the world; society; sphere; circle; world-renowned; world-famous
to be surprised; to be astonished