| ประโยคภาษาจีน : 中文句子 | 
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|  zhè zhǒng这种  líng huó xìng灵活性  shǐ de使得  qì yùn汽运  chéng wéi成为  měi guó美国  nǎi zhì乃至  shì jiè shàng世界上  duō shù多数  dì qū地区  zhǔ yào主要  de的  yùn shū运输  fāng shì方式 | 
| Their flexibility has enabled them to become the dominant form of transport in the United States and in many other parts of the world. |