| ประโยคภาษาจีน : 中文句子 | 
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|  zhàn guó战国  shí dài时代  fā míng发明  le了  kě yǐ可以  shuāng双  jiàn箭  qí shè齐射  de的  lián nǔ连弩  tí gāo提高  le了  fā shè发射  sù dù速度 | 
| Repeating crossbow which could launch two arrows at a time was invented during the Period of Warring States. |