aviation; flight; flying; to fly; to take a flight
unmanned; uninhabited; unattended; shorthandedness; lack of help
may; might; perhaps; may be; possibly
to get tired of; to lose interest in; to be fed up with; to have enough
to feel like; to feel inclined to do
literature; books (reference); document
long ago; once upon a time
toddling; taking tottering steps
infant; baby; little child
cruel; brutal; ruthless; merciless; inhuman
approximately; about; promise; appointment; shortening; reduction
district; region; the country; countryside; civilian society
education; schooling; training; culture; cultivation; education
fairy tale; fairy story; nursery tale
to explain; to advocate; to preach; to persuade
fiction; made-up story; fable; fabrication; myth
kind; sort; type; equal; match; peer
(Oh) dear!; (Oh) dear me!; Good gracious
observation; survey; watching
suddenly; all of a sudden; abruptly
rich (in flavor, color, smell, etc.); thick; very likely; highly possible; passionate; hot
breakthrough; great discovery
to be effective; to be fruitful; to be worthwhile; to be worth; to be rewarded; to pay off
to write down; to note; to jot down; to remember
everything; for (to) everything; (in) anything
every corner; every nook and cranny; all the ins and outs
origin; source; birthplace; release from prison; discharge from prison; exit
conclusive evidence; positive proof; definite proof; confirmation
to fall into someone's hands; to pass into another's possession
to be excited; to be elated
wonderful; splendid; magnificent
nature; disposition; temperament; qualities; attributes; talents
but then; although; though; reasonable; natural; just
look of amazement; looking dumbfounded
various opinions; various theories; various rumors (rumours)
support; backing; endorsement; support; holding up; propping
eruption; volcanic eruption
unconfirmed; unidentified
last (i.e. immediately preceding); previous; pre- (e.g. premodern); before; before; earlier
or; either ... or; maybe; perhaps; some ... and others ...; sometimes ... and at other times ...
refreshingly; with a feeling of relief; shapely; neatly; cleanly; without trouble; clearly
incremental; step-by-step; gradual; stepwise
sudden; unexpected; unpredictable; unforeseen