| ประโยคภาษาจีน : 中文句子 | 
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|  dāng当  fáng防  shǒu fāng守方  de的  yōu shì优势  huǒ lì火力  pò shǐ迫使  dí fāng敌方  guǎng fàn广泛  jué掘  háo壕  yǐ以  xī shēng牺牲  jī dòng xìng机动性  lái来  huò dé获得  fáng hù lì防护力  shí时  jiù就  huì会  fā shēng发生  qiàn háo zhàn堑壕战 | 
| Trench warfare is resorted to when the superior firepower of the defense compels the opposing forces to “dig in” so extensively as to sacrifice their mobility in order to gain protection. |