在更新世冰期, 古水系常被冰川作用完全改造.During the Pleistocene Ice Age , the ancient drainage systems were almost completely rearranged by glaciation.冻冰期后的暖和天气;冰雪融化.A three - month ice - free period during the summer.塔里木板块上元古界阿勒通沟组和黄羊沟组: ...
He underwent a lot of hardships in his childhood.他在童年时代经历了许多坎坷.She spoke with great seriousness of the hardships she had endured.她非常严肃地讲述了自己经历的苦难.After many hardships, he now lives in comparative ease.经过许多困难之后, 他现在的生活相对舒...