exchange (e.g. cultural); interchange; interaction; alternating current; AC
indescribable; inexpressible; unspeakable; indefinable; nobody can tell
vague; ambiguous; shady; disreputable; fuzzy
to hear; to hear by chance; to hear by accident; to catch (the sound)
simple; plain; uncomplicated; straightforward; simple-minded; naive
may; might; perhaps; may be; possibly
to end; to come to an end; to close; to finish
still; as yet; (not) yet; more; (more) still; at least
on a routine basis; regularly; habitually
agency; commission; reception (of guests); conveyance (of messages)
diligently; seriously; perfectly; properly; sufficiently; satisfactorily
(private) secretary; treasured book; secret book
something like ...; things like ...; someone like ...; the likes of ...
(not) even once; (not) ever
terrible; dreadful; amazing (e.g. of strength); great (e.g. of skills); to a great extent; vast (in numbers)
be supposed or expected to (do); be sure to (do); ought to (do)
to eat; to live on (e.g. a salary); to live off; to subsist on
to collect; to put (it all) together; to summarize; to aggregate; to bring to a conclusion; to finalize
time; season; period; phase; stage
bad; poor; inferior; delinquent; hoodlum; hooligan
(within a) territory; domains
to get tired; to tire; to become worn out (of a well-used object); (arch.) to starve
it is not (like that) either
on the way; en route; in the middle of; midway; halfway
to go to and from (a place); to go back and forth between; to go to (school, work, etc.); to attend; to circulate (e.g. blood, electricity); to be communicated (e.g. thought)
why?; what for?; how?; by what means?
without sparing time for sleep
to help; to assist; to aid; to contribute to; to be a factor in
supposing; even if; granting that; temporarily; provisionally; for the time being
to touch; to feel; to get involved (with); to approach; to be harmful to; to hinder
mostly; nearly; practically; well-nigh; almost invariably; all but
to leave alone; to leave as is; to ignore; to neglect