China debuts bullet train that can operate in extremely cold temperatures

今日の英語の習慣化の題材は.. ChinaのNew  Bullet Train (新幹線)の記事より...
特記すべき事は、寒さに強い(Extremeという単語を使っていますね)新幹線である事らしい ？

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(CNN) — China has unveiled a new high-speed bullet train designed for extremely cold climates.
The CR400AF-G train, which can operate at speeds of up to 350 kilometers per hour (217 mph) in temperatures as low as -40 degrees Celsius (-40 degrees Fahrenheit), is part of the Fuxing series of high-speed electric multiple-unit (EMU) trains developed and operated by the state-owned China State Railway Group.