cannot (due to external circumstances); cannot afford to; must not; impossible to; no way one can (do)
still; even now; to this day
to be unable to; to find difficult (unpleasant, awkward, painful) to do; to serve two or more functions or roles simultaneously; to contain (or combine) two or more features; to work in two or more jobs simultaneously (positions, etc.); to do alongside
to hold (in one's hand); to take (into one's hand); to own; to obtain
that is (to say); namely; precisely; exactly; if one does ..., then; in that case
very; considerably; by no means; not readily; middle; half-way point
to be; to come; to go; to be (doing)
to make clear; to clarify; to disclose; to make public
may; might; perhaps; may be; possibly
to be in a hurry; to be impatient; to be anxious (to do); to get a fright; to panic; to get flustered
to feel around for; to fumble for; to investigate; to probe into; to explore (parts unknown); to enjoy (natural beauty)
usual; ordinary; normal; regular; general; common
study; scholarship; learning; discipline; branch of learning; (a) science
to serve as a reference; to provide useful information; to be helpful; to be informative; to be instructive
encompassing; covering (exhaustively); including (all of); comprising; comprehending
material; materials; data; information; documents
understanding; comprehension; grasp; perception; appreciation; mastery (of an art or skill)
solemn (ceremony, atmosphere, etc.); austere; grave; majestic; dignified; stately
to be packed (with); to be filled; to be blocked (of a pipe, nose, etc.); to be clogged; to be become shorter; to shrink; to be at a loss (for)
to perform; to do; to conduct oneself; to carry out
to finish reading; to read through; to figure out; to fully anticipate
difficult; hard; impossible; unfeasible; fussy; particular; gloomy
unripe; green; immature; immature; inexperienced; unskilled
user; consumer; master (e.g. of swordsmanship); prodigal; spendthrift
holder (of a record, title, permit, etc.)
large number (of); many; majority
aid; help; assistance; assistant; counselor; counsellor
in order to; for the purpose of; must; should
conversely; on the contrary
just because; even if; even though
spirit; mind; nature; disposition; intention; mind; mood
one (esp. of two); the other; on the one hand; on the other hand; whereas; although
occasion; time; circumstances; (in) case (of); when
noisily; clamorously; incessantly (complaining, pestering, etc.); going on and on; loudly (crying); wailing
noisily (crowd of people talking); clamorously; in a hubbub; jabberingly; chatteringly; buzzingly
being enthusiastic about; being wild about; being absorbed in; being engrossed in; being devoted to
firing (esp. a rocket or missile); launching; shooting; ejaculation
reading through (a book); finishing (a book)
how long; how far; how much
to be absent; to take a day off; to rest; to have a break; to go to bed; to (lie down to) sleep
before very long; soon; someday; one of these days; sooner or later
hard fighting; hard struggle; fighting against heavy odds
fluently (speaking a foreign language); incessantly (speaking); glibly; one after the other (flipping through pages); thin (paper, cloth, etc.); flimsy