1. 是否存在：1,检测集合中的元素是否存在(EXISTS) 检测集合中的元素是否存在(EXISTS) 函数 EXISTS(n)在第 n 个元素存在的情况下会返回 TRUE,否则返回 FALSE.我们主要使用 EXISTS 和 DELETE 来维护嵌套表.其中 EXISTS 还可以防止引用不存在的元素,
2. 目标存在：unmount 无 下马 无 下马 | exists 目标存在 | noexists 目标不存在
3. 目標還存在：harm 目標是敵方 | exists目標還存在 | dead 目標已死亡
1. exists的翻译
1. A huge gap exists between credit supply and credit demands for the small business sector.
2. Scant information exists on flu vaccines with adjuvants, a component used to stretch the active ingredient that is common in European flu vaccines.
3. While debate exists over whether the South China tiger still exists in the wild, all of the known 60 animals are in captivity in China.
4. The charge that exists today outlaws any sexual activity that involves three or more people and carries a maximum punishment of five years in prison.
5. 911chaxun查询·英语单词
5. As long as the earth exists, we will survive - but only if we take care of it.
6. 911查询·英语单词
6. " There still exists a caricature of India as a land of call centers, " the president said.
7. They called for more studies to determine whether a causal relationship between impulsivity and sweet taste exists.
8. The glass ceiling still exists in terms of the top management positions at various public as well as private institutions.
9. Acute competition for students exists among schools as those whose enrolments fail to meet a certain required level would be shut down.
10. I am certain that on the Chinese side a similar sentiment exists for Pakistan.