首: Ⅰ名词1.(头) head 短语和例子昂首 hold one's head high; 搔首 scratch one's head2.(首领) leader; head; chief 短语和例子匪首 bandit chieftain; 祸首 chief culprit; 为首 with sb. as the leader3.(表示方位) aspect 短语和例子下首 rig
设施: installation; facilities 短语和例子防洪设施 flood control installations; 集体福利设施 collective welfare institutions; 军事设施 military installations; 文化教育设施 cultural and educational institutions; 军事设施 medi