flesh
incontrovertible
be exercised about sth
to debunk
a trade-off
joint
to decline
to scare off
pernicious
vigour
endurance
vicious cycle
an ancestor
energy, force or enthusiasm
the soft substance between the skin and bones of animal or human bodies
be very anxious about something
to show that an idea, a belief, etc. is false
the ability to continue doing something painful or difficult for a long period of time without giving up
to become smaller, fewer, weaker, etc.
a situation in which you balance two opposing situations or qualities
a situation in which one problem causes another problem which then makes the first problem worse
a person related to you who lived a long time ago
having a very harmful effect, especially in a way that is not easily noticed
to make somebody go away by frightening them
that is true and cannot be disagreed with or denied, indisputable
a place where two bones are joined together in the body in a way that enables them to bend and move