《中国航天员在太空上课》

student

astronauts

time

outer space

student

astronauts

time

outer space

student

astronauts

time

outer space

student

astronauts

time

outer space

class is over

school dismissed

to attend class, to go to a class

learned

class is over

school dismissed

to attend class, to go to a class

learned

class is over

school dismissed

to attend class, to go to a class

learned

class is over

school dismissed

to attend class, to go to a class

learned

minute (duration)

number of times; measure word for frequency

to give

away from; to indicate the distance between Place 1 and Place 2

minute (duration)

number of times; measure word for frequency

to give

away from; to indicate the distance between Place 1 and Place 2