1. Her position as a small and weak state hedged in by a large and powerful republic became
untenable.
它作为一个被强大的共和国所包围住的弱小的州的地位已难以维持。
2. Then toppling him would have meant U. S. occupation of Iraq, which was
untenable for America, its allies and the Arab world.
当时，若推翻了萨达姆，美国就得占领伊拉克，这是美国、盟国和阿拉伯国家都不能接受的。
3. Once man came to be seen as developing in the process of evolution, the idea of a substance which is contained in his essence seemed
untenable.
一旦人被看做是在进化过程中的发展阶段，那么包含在其本质中的物质的想法似乎是站不住脚的。
