The train departed on time, chugging along the tracks.
Meaning: The train left the station at the scheduled time, making the characteristic chugging sound as it traveled down the railroad tracks.
Choice of Words: Departed means to leave a place or start a journey, often used for formal or official situations. Chugging is the sound a train makes as it moves along the tracks, like a rhythmic "chug-chug-chug" noise.
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