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1·The four tones in Chinese pronunciation drives me crazy.

汉语的四个声调总是让我抓狂。

2·You know the four tones and the stuff. It really freaks me out.

你知道四声那些东西，真够烦的。

3·Its vowels include plain pharyngealised strident and breathy and they carry four tones.

元音包括简单音，咽音，刺耳音，气音，而且有四个声调。

4·The four tones are considered as four fuzzy sets which describe the four pattern classes.

孤独字的四声调可被描述成四种模式类的模糊集合。

5·There are four tones in Mandarin Chinese Pinyin, plus one neutral tone(or called no tone).

在汉语中有四个声调，加一轻声（或称为“无音”）音。

6·Special pages help you learn pinyin, practice with the four tones, or learn the dynasties of China.

一些页面可以教你拼音，帮你学习四声，或教你中国的历史。

7·Chinese is a typical tone language. It has four tones: the level, the rise, the fall-rise and the fall.

英语里共有四种基本语调类型，即大家所知的那四种语调：降调，升调，降升调，升降调。

8·Ancient Chinese spoke with four tones: level, bounce, fall, and enter, and these four tones should be in tune.

中国的古人把说话声音的声调分为平、上、去、入四种。这四个单音应该和谐悦耳。

9·Actually, I am learning that now. But it's too hard for me. You know the four tones and the stuff. It really freaks me out.

事实上，我正在学，但对我来说那太难了。你知道四声那些东西，真够烦的。

10·For the ideal synthesis, USES a method of changing the long of frame to get pitch periods of given people natural four tones.

提出一种变长分帧的方法。为了较理想的合成出特定人的自然语音，采用变长分帧方法对特定人的自然语音的四声提取基音周期序列。