n. 
天动力学
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officeholder, officeoverhead, officer, officers, offices, official, official document, official language, officialchannel, officialdom,
相似单词
aeroamphibious, aeroanaerobic, aeroarthrosis, aero-arthrosis, aeroaspiration, aeroastrodynamics, aeroastromedicine, aero-atelectasis, aerobacter, aerobacteria,