actuate
UK/'æktʃueit/US
TOEFLGREC2
Definitions
v.
To cause a machine or device to operate
开动，驱动（机器）
v.
To motivate someone to act
激励，促使（某人行动）
Root Breakdown
Root-derivedFrom actus (a thing done) + -ate (make) = to set into action. Mostly technical now (an actuator actuates a valve); the 'motivate' sense is more literary.
Root act still carries 59 more wordsExample Sentences
- 1.
The sensor actuates the brake automatically.