他们认为早前由于允许南非国家出售储备象牙，导致其他地方偷猎肆虐：买卖象牙的商人常常提供假的产地商标。
They say an earlier decision to let southern African countries sell some of their ivory stockpile caused poaching to soar elsewhere: those handling the ivory often provide false labels of origin.
许可的第二种用途是在专利权、版权和商标权的情形中，所有者(以许可的形式)将制造、复制、买卖其知识产权的权利授予另一当事方。
The second use of licensing is in patent, copyright and trademark cases whereby authority (in the form of a license) is granted by the owner to another party to make, reproduce, buy or sell the item.
凭商标或牌号买卖。
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