start up

名词 start up:

1. the act of setting in operation
   同义词：startup
2. the act of starting a new operation or practice
   同义词：inauguration, startup

动词 start up:

1. get going or set in motion
   同义词：start
2. get off the ground
   同义词：start, embark on, commence

1. The machine started up with a roar.
   机器一声轰鸣开动了。
2. At six o'clock the motor started up.
   6点钟时马达开动起来。
3. The bus is starting up, Let's run to catch it.
   汽车刚开动，让我们跑着赶上。
4. She's just started up a new company; I hope she makes a success of it.
   她新开办了一家公司，我希望她取得成功。