从中国国家铁路集团有限公司获悉,CR450动车组样车2024年12月29日在北京发布,试验速度时速450公里,运营速度时速400公里。 Prototypes of the CR450 bullet train, with a test speed of up to 450 kilometers per hour and an operational speed of 400 kilometers ...
Please explain “hanging in there” in this sentence: Thank you for hanging in there with us during these difficult times. My comments: Thank you for staying with us during these difficult times. Thank ...