英语语法分析

The hypnotic action of thiopental in mice was not prolonged by Sinomenine.

本药不延长硫喷妥钠的作用时间。

America's dependence on such imports stems from a shortage of sodium thiopental, part of the three-drug cocktail used in most executions.

美国对于这种进口的依赖源于“硫喷妥钠”的短缺，它是“三药鸡尾酒死刑注射法”的其中一部分。