英语语法分析

Either premiums must rise or some markets are rendered unviable.

要么必须提高保费，要么某些市场会难以为继。

While the exterior retained a stellar image, the interior was cramped an economically unviable.

虽然外表保留了巨星的风采，内部却完全过时了。

In the docklands—bombed by the IRA in 1996—the skyscrapers that had once seemed unviable filled up.

1996年被爱尔兰共和军（IRA）轰炸的港口遗址上，一栋栋摩天大楼拔地而起——这还曾经被认为不可能的事。