That would be the responsibility of the buyer. We are prepared, however, to provide all the documentation costs.
那是属于买方的责任,我们仅承担提供所有文件的费用。
It seems that man was making a real effort to understand the seasons 20,000 years earlier than has been supposed.
看来人类早就致力于探索四季变迁了,比人们想像的要早20,000年。