discovery; detection; finding
unfortunately; sorry, but ...
always; without exception; necessarily; certainly; without fail; positively
hollow; cavity; dent; depression
such; like that; that sort of
unnatural; artificial; affected; strained
even more; still more; one layer; lowest floor (of a building); rather; sooner
to prove successful; to take hold; to amount to something
simple; plain; uncomplicated; straightforward; simple-minded; naive
shutting tightly; making airtight; sealing hermetically
bottle; jar; decanter; flagon; phial; vial
to compare (something) to; to liken; to speak figuratively; to use a simile; to use a metaphor
solid (body); solid matter; solid-state
to decrease (in size or number); to diminish; to abate
three; three years of age
expectation; anticipation; hope; promising; rising; up-and-coming
poor; pitiable; pathetic; pitiful
to untie; to unfasten; to unsew; to unstitch; to solve; to work out; to dispel (misunderstanding, etc.)
from the viewpoint of; according to
answer; reply; response; answer; solution; result
to line up; to set up; to enumerate; to itemize; to be equal (to); to compare well (with)
event; affair; incident; case; plot; trouble
to let leak; to let out (e.g. light); to let out (a secret); to leak (information); to give utterance to (e.g. one's dissatisfaction); to vent; to wet one's pants
in terms of both ... and ...; from the perspective of ... as well as ...; whether it be ... or ...
surely; undoubtedly; sternly; severely; having no slack; rigid
black; dark; blackish; suspicious; criminal; darkened and dirty; sooty
plans; arrangement; schedule; program; programme; expectation
(one's) self; oneself; yourself; himself; herself
to roll up; to enfold; to swallow up; to involve; to drag into
contents of a document (esp. of a letter)
isn't it?; let's ...; why don't we ...; how about we ...
once; one time; temporarily; for a moment; one degree; one tone
to look for; to search for; to go on a spree (spending, reading, etc.); to binge; to fish
to pick out; to single out; to select; to extract; to draw out; to pull out
to be at one's wits' end; to be cornered; to be in a fix; to be in a desperate situation; to be in a pinch; to be in a predicament
demand; firm request; requisition; requirement; desire
to obey (an order, law, etc.); to abide by (a rule, custom, etc.); to follow (a person); to accompany; to go alongside (e.g. a river); to follow (e.g. a sign)
to fold up; to fold into layers; to collapse (content on a webpage, etc.)