on weekdays
on weekends
on certain days
on holidays
第1题:
第2题:
第3题:
According to their own timetable.
Without their teachers’ help.
Because of their wonderful goals.
Against their parents’ hope.
第4题:
y=3x2-1
y=x3-3
y=3x
y=log3x
第5题:
in addition
in consequence
in advance
in short
第6题:
第7题:
Huainan
Chengdu
Taishan
New York
第8题:
第9题:
第10题: