美国人意识到他们无法避免购买中国制造的产品.
Americans realized they could hardly products made in China.
The students s the floor after school every day.
There is a big old tree our school.(在……对面)
Dragon Boat Festival is a (传统的) festival in China.
How much are these (短袜)?
Earthquakes always happen s , so it's difficult to warn people about them.