[kòng xì]
(时间上的) interval
in the intervals of business
在工作空隙时间
intervals of fighting; interval between battles
战斗空隙
(空间上的) gap; space; clearance; separation; air-gap (AG); slot; [铸件] allowance; chasm; lash; yawn; rift; clear; lacuna; interspace
fill up a gap
填补空隙