They began working to get control of Congress to pass their own program.

VOA: special.2010.01.21

OK, good. Control one working.

好的，1号控制器工作了。

麻省理工公开课 - 化学原理课程节选

One of the small rockets of his automatic control system stopped working.

VOA: special.2009.06.17

"We didn't see faces of BP employees working on the ships to control the spill."

VOA: standard.2010.06.10