最后它们在宽阔的河谷内连接起来，形成一个交织的河道砂系统。
These may eventually coalesce to form an anastomosing system of channel sands within a broad valley.
大棉白杨的旁边，是一小片冬天落叶的棉白杨树林，长在那条宽阔多沙的河谷中。
The big cottonwood tree stood apart from a small grove of winter bare cottonwoods which grew in the wide, sandy, arroyo2.
大棉白杨的旁边，是一小片冬天落叶的棉白杨树林，长在那条宽阔多沙的河谷中。
The big cottonwood tree stood apart from a small grove of winter bare cottonwoods which grew in the wide, sandy, arroyo2.
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