| ประโยคภาษาจีน : 中文句子 | 
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|  zài在  yǎn kē xué眼科学  zhōng中  rú tóng如同  shì shí事实  yì bān一般  bèi被  xuān chēng宣称  de的  lǐ lùn理论  yǐ jīng已经  bèi被  yòng lái用来  yǎn gài掩盖  zhēn真  xiàng hé相和  mǒ shā抹杀  diào chá调查  yī bǎi一百  duō nián多年  le了 | 
| In the science of ophthalmology, theories, often stated as facts, have served to obscure the truth and throttle investigation for more than a hundred years. |