那时没有沙漠车，物探队员骑着骆驼在荒漠老林中蹒跚前行，脚下是棉絮般厚厚的残枝败叶，处处潜伏着危险。
B-Time I-Time O O B-Thing I-Thing I-Thing O B-Person I-Person I-Person I-Person O O B-Thing I-Thing O B-Location I-Location I-Location I-Location O O O O O O B-Location I-Location O B-Thing I-Thing O O O O B-Thing I-Thing I-Thing I-Thing O O O O O O O O O