汽笛在叫。
The continuity of a steam whistle is due to the intense rapidity of its sequential "explosions".
汽笛的连续性，是由于它的连续“爆炸”的强烈速度。
The sound of a steam whistle fell upon a wilderness. At the parting moment immeasurable melancholy and loneliness welled up in my mind.
一声汽笛，跌落在旷野，无限的惆怅与孤独在离别的那一刻，一起涌上心头。
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