1. The snow on the pavement was compacted and has turned to ice. 人行便道上的雪被踩实并结成了冰。
2. The body ought to be compact, and to show no irregularity either in motion or attitude. 身体应当是简洁的，无论在活动中还是姿态上都不表现出杂乱无章。
3. The micro spectrometer has the characteristics of compact structure, small volume, strong ability against disturbance, convenient use and so on. 该微型光谱分析仪具有结构紧凑、体积很小、抗振动干扰能力强，使用方便灵活等优点。
英英解释
n.
1. a small cosmetics case with a mirror; to be carried in a woman's purse
2. a signed written agreement between two or more parties (nations) to perform some action
3. a small and economical car v.
1. have the property of being packable or of compacting easily
2. compress into a wad
3. make more compact by or as if by pressing
4. squeeze or press together adj.
1. closely and firmly united or packed together
2. having component parts closely crowded together
3. heavy and compact in form or stature
4. briefly giving the gist of something
