开始行动：开始采取行动或执行任务。
... go into进入；研究，调查 go into action开始行动，投入战斗 go off爆炸，发射；动身，离开 ...
... die in action战死，阵亡 go into action开始行动;投入战斗 out of action出故障，失灵，坏了，被消灭，失去战斗力，失去作用 ...
... go into 进入;调查;从事 go into action 起头步履 go into effect 实施,起作用 ...
... action and reaction 作用和反作用 go into action 投入战斗;行动起来 bring/call into action 使行动起来;使起作用 ...
行动起来；投入战斗
The Emergency services, the Fire Departments, the Police, hospitals, and ambulances stood by, ready to go into action.
紧急服务部门、消防部门、警察、医院和救护车已经待命，随时准备采取行动。
Once you reach the predetermined time limit, you must stop thinking and go into action.
一旦你即将超出时间限制，就必须停止思考，开始行动。
Once you reach the predetermined time limit, you must stop thinking and go into action.
一旦你即将超出工夫限制，就必须中止考虑，开始举动。
He said he had to go into action as quickly as possible -- as fast as he could move.
VOA : special.2010.03.10
Considering the strict circumstances needed, these researchers think there's a slim chance that this kind of malware could go into action easily.
ENGADGET: Georgia Tech spies on nearby keyboards with iPhone 4 accelerometer, creates spiPhone
As the followers go into action with their ice picks and glittering blades and gasoline and matches, Mr. Bacon's character and an FBI cult expert played by Annie Parisse begin a race against time while the body count mounts.
WSJ: The Following on Fox; Paul Williams Still Alive on Showtime: TV Reviews by Nancy deWolf Smith
The fiscal cliff refers to the combination of automatic tax hikes and spending cuts that go into effect in January without action by Congress, and which may tilt the U.S. back into recession. (For explanation, click here ).