She had been his secretary for over a year, and had learned a great deal about the subject on which he was an international authority--glaciers. 她給安德魯博士，一位冰川學的國際權威人士，當了一年多的秘書，學會了許多這個領域裡的知識。
The evolution of internal law and internal authority may well be decisive in deterring whether this global society is going to survive in reasonable conditions. 國際法和國際權威的演變或許決定著這個全球社會能否在理性狀態下生存。
