[kòng xì]
（時間上的） interval
in the intervals of business
在工作空隙時間
intervals of fighting; interval between battles
戰斗空隙
（空間上的） gap; space; clearance; separation; air-gap (AG); slot; [鑄件] allowance; chasm; lash; yawn; rift; clear; lacuna; interspace
fill up a gap
填補空隙