people who are travelling or visiting a place for pleasure
tourists
a fight, especially during a war
combat
the middle point or part
center
the amount of space between two places or things
distance
a signature, especially of a famous person
autograph
the state of being stretched tight; mental or emotional strain
tension
something that is difficult or impossible to explain
mystery
a line border separating two countries
frontier
to say what medical treatment someone needs
prescribe
unhook or unfasten
unhitch
a strong covering that protects a person, animal ,or vehicle
armor
falling or fallen into ruin
tumbledown
people who watch a public event or performnace
spectators
something that is very strange or unusual, especially in a way that is difficult to explain
bizarre
to go down or come down
descend
if this happens, you break or tear it
rupture
the outer or top part or layer of something
surface
a device for speaking to someone in another place by means of electrical signals
telephone
a person who takes photographs
photographer
a naturally occurring solid material from which a metal or mineral can be extracted
ore
to move or fall suddenly and often a long way forward, down, or into something
plunge
so severe that death is likely
mortally
of great value
precious
extremely angry or full of rage
furious
the best teacher in the world
Mr. Lu