背颂
2.Children sat around a single coal-oil lamp to memorize poems or calculate long sums.
3.If possible, we may read some English tongue twisters loudly and quickly with one or two cakes of candy in our mouth (just as the Chinese cross-talk actors do.) to train our oral caity muscle and tongues suitable for English pronunciation.
4.If possible, we ma read some English tongue twisters loudly an quickly with on o w akes of candy in ou mouth (just as th Chinese cross-talk actors do.) to train ou oral cavity muscle an tongues suitable fo English pronunciation.

