1. 法律(上)的;司法的;法制的 Legal is used to describe things that relate to the law.
e.g. He vowed to take legal action. 他誓言要采取法律行动。 e.g. ...the British legal system... 英国的法律体系
legally There are reasons to doubt that a second trial is morally, legally or politically justified... 我们有理由怀疑重审是否有道德、法律或政治理据。 It could be a bit problematic, legally speaking. 从法律上讲,会有点问题。