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- Kirkwood gaps 缺口: very few asteroids have periods resonant with Jupiter. 很少小行星跟木星是共鸣周期的.
- Some of the more far-flung asteroid debris ended up in the 3:1 Kirkwood gap. 有些小行星的碎片经历漫长的旅程进入3：1的柯克伍德空隙。
- Kirkwood gaps 柯克伍德空隙
- The girl found a gap and squeezed in. 小女孩找了个空子挤了进去。
- There are still gaps in my knowledge of English. 我的英语知识仍有空白。
- There is a generation gap between my parents and I. 我父母和我之间有代沟。
- How can we bridge the gap between rich and poor? 怎样才能缩小贫富之间的差距?
- They planed to narrow the gap between imports and exports. 他们计划缩小进出口的差额。
- The new series of golf holidays fill a gap in the market. 新的高尔夫度假系列填补了市场的一个空白。
- The gap between the rich and the poor has widened. 贫富之间的差距扩大了。
- A big gap yawned between the rocks. 岩石间豁开一个大裂口。
- The road goes through a gap in the hills. 这条路穿过两条山脉之间的峡谷。
- A narrow gap or pass between hills or woods. 小路山间或林间狭窄地带或通道
- An open space or a break in continuity; a gap. 空白，空处连续中的空处或中断; 间断
- I filled in a gap in the conversation by telling a joke. 我讲了一个笑话，填补谈话中出现的冷场。
- The gap between the two runners is beginning to close. 两个赛跑者之间的距离开始缩短。
- He filled a gap in the conversation by telling a joke. 他插了一则笑话,使谈话不致中断。
- He stopped a gap in the conversation by telling a joke. 他插了一则笑话,使谈话不致中断。
- The gate was locked but we went through a gap in the fence. 大门锁上了，但是我们从篱笆的缺口中钻了出去。
- There are several gaps in the record. 这记录有几个空白处。
