Tǎnkè zài zhànchǎng shàng fāhuī le zhòngyào zuòyòng.
Tanks played an important role on the battlefield.
Tips
history
坦克 is one of the earliest military loanwords in Chinese, transliterated from English 'tank.' The English word itself was a deliberate code name — the British called their secret new weapon 'water tanks' to disguise its purpose during WWI.