n. 分界线；范围；（球场）边线；
用作名词(n.)
The boundaries of that country were changed by a treaty.
那个国家的边界根据条约有所更动。
Is there anything that is beyond the boundary of human knowledge?
有什么东西是超出人类知识范围的?
1. Just before the town boundary fork left onto a minor road.
快到城镇边界时要走岔路的左边一条小路。
2. The ball was caught by a fielder standing just inside the boundary.
那个球被正站在边界内的守场员接住了.
3. A river forms the boundary between the two countries.
一条河流成了两国的分界线.
4. The boundary between Shanxi and Shaanxi is the Huanghe River.
山西和陕西以黄河为界.
5. The river is the boundary between the two countries.
这条河是两国的界河.
6. The boundary questions still remain unsettled.
边界问题仍然没有解决.