The key principle of copyright law has always been that works can be copied only once authors have expressly given their permission," says Piers Blofeld, of the Sheil Land literary agency in London.
出自-2011年12月阅读原文
柯林斯高阶英汉双解学习词典释义
N-COUNT
（通常指伸向大海的）凸式码头，突码头，突堤
A pier is a platform sticking out into water, usually the sea, which people walk along or use when getting onto or off boats.