时间与落叶 百度云:Principal in the head____ a school.(填空)

all hea?? in the world Principal in the head____ a school.(填空) 关于principal与the principal的问题 What is the Pareto Principal? existing under the laws of Japan and having its principal office of business at Hiroshima,Japan. 怎么翻成中文？“Forged pressrue vessels are not allowed, unless authorised by the Principal.”谢谢 in common,in the same in the field 还是in the fields? The girl in the hat? The world in the future