間， あいだ， あわい
1. space (between), gap, interval, distance, stretch
2. period of time (during, while), duration, interval
3. between (two parties or things)
4. among (a group)
5. relations (between), relationship
6. midpoint, average, halfway, middle ground
7. due ...
空，空隙，间隙，距离；时间段，间隔；之间