is something that; is that which
riddle; puzzle; enigma; enigmatic; mysterious
to be solved; to be worked out; to come loose; to come untied; to be removed (of restrictions); to be lifted (e.g. of a ban)
by the way; in this connection; incidentally; in passing
favourite dish (favorite); favourite food
flesh; meat; flesh (of a fruit); pulp; the physical body (as opposed to the spirit); flesh; thickness
particularly; especially; in particular; expressly
Hamburg steak; hamburger steak
facial expression; countenance; look; appearance; expression (vocal, etc.)
change; variation; variety; diversity; inflection; declension
something; some; somehow; for some reason; (so) what (are you trying to say)?; what (do you mean)?
specific; particular; designated; specifying; designating; identifying
emergency; extreme; great; extraordinary
difficult; hard; impossible; unfeasible; fussy; particular; gloomy
time; hour; occasion; case; chance; opportunity
more than usual (usu. time)
several; a few; number; quantity; counting; calculation; number
milli-; 10^-3; millimetre; millimeter
to rise; to go up; to enter (esp. from outdoors); to come in; to enter (a school); to advance to the next grade; to get out (of water)
daily; everyday; days (e.g. of one's youth); every day; day after day
observation; survey; watching
discovery; detection; finding
in some way or other; one way or another; somehow; only just; barely
to untie; to unfasten; to unsew; to unstitch; to solve; to work out; to dispel (misunderstanding, etc.)
very; considerably; by no means; not readily; middle; half-way point
to have much trouble; to have a hard time; to not know how to handle
to take (a resource, e.g. time or money); to hang; to come into view; to arrive; to come under (a contract, a tax); to start (engines, motors); to attend
et cetera; etc.; or something; the likes of; for example; for instance
nevertheless; at any rate; even so; all things considered; be that as it may
to notice; to realize; to realise; to regain consciousness; to come to (one's senses); to come round
atmosphere; air; magnanimous; generous; large-hearted
state; condition; situation; appearance; circumstances
another place; some other place; another (person or thing); other; beyond (one's expectations, imagination, etc.); outside
gas; vapour; vapor; gaseous body
to think (about, of); to think over; to consider; to bear in mind; to think (that); to believe; to intend (to do)
scholar; academic; scientist; learned person; person of learning
difference; disparity; gap
not caring; not giving a damn
existence; being; life; survival
possible; potential; practicable; feasible
environment; surroundings; circumstances
that is to say; so that means
extreme; ultra; mega; damn; stupid; cursed