southwestern margin的用法和样例：
例句
- Renziping seg is a sub-depression of Cenozoic Qinxian Basin in Guangxi Province.Oil shale exploration area situates on the southwest margin of the basin.
摘要稔子坪油页岩勘查区是广西新生代钦县盆地的一个次级凹陷，位于盆地西南边缘。 - For the many Goldman executives who visit New York for meetings in midtown Manhattan, the hotel's location on the far southwestern edge of the island is inconvenient.
对许多来纽约曼哈顿中城开会的公司高管来说，这个位于曼哈顿岛西南边缘的酒店在交通方面还是不太方便。
