oh!; good heavens!; ugh!; oh no!; ah!; the penny drops!
usually; under usual circumstances
to use (a thing, method, etc.); to make use of; to use (a person, animal, puppet, etc.); to employ; to use (time, money, etc.); to spend
special; particular; peculiar; unique
to try to ...; to be about to do ...; to decide to ...; to take as; to treat as; to use for; to suppose that (such) is the case
lieutenant colonel; commander (navy)
how; in what way; by what means
to collect; to assemble; to gather
as you see; as you can see
the past; bygone days; one's past (that one would prefer remained secret); past (tense); preterit; previous life
erasure; striking off; crossing out; cancellation; deletion
to disagree; to dispute; to fight (over)
simple; plain; uncomplicated; straightforward; simple-minded; naive
human experiment; human experimentation; experiment on a living person
war; fighting; fierce competition
very; awfully; exceedingly; (not) at all; by no means; simply (cannot)
to get up; to rise; to wake up; to be awake; to occur (usu. of unfavourable incidents); to happen
to feel (as if); to have a feeling (that); to have a hunch (that); to feel like doing; to want to do