首要?primary; first;overarching; of the first importance
?leader; chief
首腦會議的～主題 overarching theme of the summit/政府～government leaders/～分子ringleader;chief culprit/～任務(wù)number one task;most important task/～條件primary condition/～原因 （法律）first cause/～戰(zhàn)犯arch criminal; chief war criminal /～云集a galaxy of leading figures |