Which took thousands of years to form, disappears. 因雨水侵蚀消失殆尽
Thousands of species disappear forever. 数千物种灭绝
Thousands of factory ships are emptying the oceans. 成千上万的捕捞船正在掏空海洋
They contain thousands of species whose existence remains a mystery to us. 在它之中的上千种生物仍然是个谜
Most consumer goods travel thousands of kilometers... 大多数消费品穿越上千公里
Developed by farmers over thousands of years... 四分之三的品种
The memory of thousands of years scrabbling for food faded. 数千年来挣扎求食的记忆已经淡去
It was the story of humankind for thousands of years. 这是几千年来人类一成不变的经历