其实对此,YouTube官方有一个明确的答案:只要符合合理使用原则(Fair use),就不涉及到侵权。合理使用是一种法律原则,主张在某些特定情况下,您不必征求版权拥有者的同意,就可以重新使用受版权保护的内容。(Fair use is a legal doctrine that says you can reuse copyright-protected material under certain circumstances without getting permission from the copyright owner. )