criterion; standard; yardstick; rough estimate; approximation
time; hour; period; class
now; soon; already; yet; further; more
to go to bed; to be sick in bed; to be laid up
to feel (as if); to have a feeling (that); to have a hunch (that); to feel like doing; to want to do
going to bed; retiring (for the night)
to talk; to tell; to recite; to pledge; to conspire with
custom; general rule; convention; usually; generally; as a rule
thin; skinny; delicate; fragile; feeble
only; just; merely; as much as; to the extent of; enough to
sleepiness; drowsiness; the sandman; Morpheus
to gulp down; to swallow deeply; to understand; to take in; to engulf; to swallow up
right; correct; proper; righteous; just
(approximate) time; around; suitable time (or condition); time of year; season
hygienic; healthy; healthful; sanitary
but; however; provided that
24 hours; twenty-four hours
guarantee; security; assurance; pledge; warranty
actually; really; truly; in practice; practically
to hit; to expose; to apply (e.g. patch); to put on; to allot; to call on someone (e.g. in class); to guess (an answer)
may; might; perhaps; may be; possibly
clear; distinct; evident; definite
accurate; correct; precise; exact
numeral; figure; digit; numeric character
to understand; to comprehend; to become clear; to be known; I know!; I think so too!
change; alteration; difference; distinction; something wrong; abnormality
intensely; severely; strictly; tightly; compactly; closely
cooking; cookery; cuisine; dealing with something; handling; administration
full stomach; bellyful; (eat) heartily; to one's heart's content
to eat; to live on (e.g. a salary); to live off; to subsist on
soundly (sleeping); fast (asleep)
sleep; sleeping; inactivity; death
you have only to; all you have to (do); all that's required; as long as; if only
fatigue; weariness; exhaustion; tiredness
lively; full of spirit; energetic; healthy; well; fit
so; like this; in this way