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- A boundary between countries. 国界，边界国家之间的边界
- When boundary between countries are not clearly define,there are usually trouble. 国与国的边界未明确划定则通常会发生纠纷。
- The lack of a boundary between Bette and Tina blows my mind. Bette和Tina之间的缺乏分界线让我觉得很不可思议。
- When boundary between countries are not clearly define, there are usually trouble. 国与国的边界未明确划定则通常会发生纠纷。
- This is because science and technology are international, which find no boundary between countries. 这是因为科学技术是国际性的，在国与国之间找不到界限。
- When boundaries between countries are not clearly defined, there is usually trouble. 国与国之间的边界未明确划定时，通常会发生纠纷。
- Boundaries between countries should be clearly defined. 国与国之间的边界应该划分清楚。
- A mid-ocean ridge is a boundary between plates where new lithospheric material is injected from belows. 岩石圈被划分为几十个大小不同形状各异的板块，一般而言这些板块都处于相对运动之中。
- Haemocytopoiesis occurred in connective tissues adjacent to the site of gametogenesis with basement membrane as a boundary between them. 成体鲎血细胞发生于与生殖细胞发生相邻部位的结缔组织，其间以基膜为界。
- Some fraction of memory cells or transistors in a vertical microcircuit will happen to straddle a boundary between polysilicon grains and will possibly fail as a result. 在三维微电路中，有一部分记忆胞或电晶体会横跨多晶矽晶粒的边界，导致失去了功能。
- When a wave emanating from the surface reaches a boundary between two media that have different acoustic impedance (the product of density and velocity), some of the energy is reflected back into the upper medium. 当一个从地面激发的波动到达具有不同声波组抗（速度与密度之乘积）的两种介质之间的分间面时，其部分能量将被反射并回到上覆介质中。
- In order to operate such an objective proposal, it is necessary to establish a boundary between the ego and the world, the same way we did between the ego and the rest of our totality. 为了体现客观，必须在自我和世界之间建立边界，同样的边界也建立在在自我和我们要用自我去审视的自我个体其余那部分之间。
- Transnationalism is a social movement grown out of the heightened interconnectivity between people all around the world and the loosening of boundaries between countries. 跨国主义是一种社会性的运动，产生于全世界范围内的人之间高涨的互联性，以及国家之间的边界的松散化趋势。
- To confine or restrict within a boundary or bounds. 限制限制或限定在一边界或范围之内
- The river is the boundary between the two countries. 这条河是两国的分界线。
- Having a boundary in common;contiguous. 毗临有共同边界的；邻接的
- A boundary river He drinks rivers of tea every day. 他每天喝大量茶水。
- The space beyond a boundary or limit. 外界超过某个范围或界线的地方
- Having a boundary in common; contiguous. 毗临有共同边界的；邻接的
- The space enclosed by such a boundary. 范围; 区域被该界限围合的空间
