obstacle; hindrance; impediment; nuisance; bore; burden
to wait for one's chance; to wait for an opportunity
natural killer cell; NK cell
infection; contagion; becoming infected
to find out; to discover; to locate
stimulation (e.g. of an economy); revitalization (e.g. of a town); rejuvenation; activation
increase; multiplication; propagation; proliferation
insistent; obstinate; persistent; too rich (taste, etc.); fatty; heavy
to be ...-ing; to have been ...-ing
in short; in a word; to sum up; to put it simply; to make a long story short; after all
bad feeling; feeling bad; disagreeable; unpleasant; revolting; gross
to vomit; to throw up; to emit; to send forth; to give (an opinion); to make (a comment)
to return (something); to restore; to turn over; to turn upside down; to pay back; to retaliate; to respond (with)
generous; soft-hearted; having a good personality
to borrow; to have a loan; to rent; to hire
to give up searching (for someone or something)
how long; how much; to what extent
to use up; to exhaust; to devote oneself (to); to do one's utmost (for); to do to exhaustion; to do completely
assistance; help; aid; support; reinforcement
exhausted; tired; withered; worn out; boiling until shapeless or mushy; tediously
to be caught; to be arrested; to hold on to; to grasp; to find (e.g. proof); to get (e.g. a taxi)
matter of time; question of time
miserable; wretched; unhappy; sad; pitiable
to be born; to come into the world
to be piled up; to lie on top of one another; to come one after another; to happen over and over; to overlap (each other); to occur at the same time
to wind (of a road, etc.); to meander; to twist; to undulate; to surge; to swell
to fade; to discolor; to discolour; to diminish; to fade (e.g. of a memory)
then; and then; and; if so; because then; if that's the case
to spread; to extend; to unfold; to open; to scatter about; to spread around
leaving open; leaving ajar; outspoken; frank
to draw back; to sink; to be set back (e.g. from a road); to withdraw (e.g. from the public eye); to retire to (somewhere)
helping hand; help; support; aid
to hold out; to extend (e.g. one's hands); to thrust (javelin); to offer (e.g. aid, help, etc.)
frustrated (over a failure, humiliation or injustice); annoyed; chagrined; (bitterly) disappointed; bitter; vexed
murmur; mutter; murmuring; tweet; Twitter post
to become clear (water, air, etc.); to become transparent; to resonate clearly (e.g. voice); to become serene; to become tranquil; to pronounce as an unvoiced sound