Encara no tenim significats per a "extensive morass".
1They came to an extensive morass, intercepted by narrow channels in every direction.
2An extensive morass and a deep tank covered their front.
3So numerous were the nests in this extensive morass that there was work enough for the hunters for days.
4The way proved longer than he had anticipated, and the horizon began to grow gloomy just as he entered upon an extensive morass.
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