英文關鍵字
academy
alone
back
behind
board
chair
chalk
classroom
desk
diffraction
dispersion
electronics
force
formula
function
human
indoor
information
inside
institute
interference
lambda
laser
lattice
learn
lecture
lenght
male
man
motion
movement
one
optic
period
person
physics
professor
room
samara
scheme
science
single
table
teach
teacher
university
variance
wave
write