Suppose instead, I want a machine that can take a recipe, the description of a sequence of steps, take that as its input, and then that machine will now act like what is described in that recipe.

假设换成这个，我想要一台可以安装描述，一系列步骤的结果的方法的机器，把那个当做输入设备，然后那台机器可以像方法中,描述的那样运行了。

麻省理工公开课 - 计算机科学及编程导论课程节选

This would change when the virus crossed paths with cells containing a very specific DNA sequence, a sequence that would act as a molecular key to unlock secondary functions that were not so benign.

FORBES: Hacking the President's DNA: When Synthetic Biology Meets National Security

Sliding panels may act differently at different points in the opening sequence.

FORBES: Japanese Secret Boxes: The Coolest Security Puzzles for Kids and Adults

The track itself is a sequence of closely packed rectangular metal frames, each of which can act as an independent electrical circuit.

ECONOMIST: Maglev trains