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Pinyin/Expression
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Pinyin#Pinyin tone marking
Expression is the things that people say, write or do in order to show their feelings, opinions and ideas.
biaaodar shih rern'men d shuo, xiee huoh quh zuoh yii biaaoshih gaanjuer, yihjiahn huoh xiaangfaa.