VIP Class Notes (JJ)

to study my English —> to study English

the cost is very cheaper —> the cost is cheaper than…./the cost is much cheaper

it’s much convenient —> it’s more convenient/it’s much more convenient

to develop the economic —> to develop the economy

Vocabulary

once every two years: 两年一次

to expand

to propagate

production

to prevent/avoid

economy: n.

economics: n. 经济学

economical: adj. 省钱的

variant: 变异株

barrier(s): 阻碍（n.)

Ex: China’s closed borders create barriers for foreigners to fly back home to visit their family because they might not be able to re-enter.

Grammar

to study something

Pronunciation

maintenance: MAIN-tnance

maintain: main-TAIN

raise: 瑞z