Examples
wǒ我zài在zhè这xiàng项jì huà计划shàng上tóu rù投入le了suǒ yǒu所有jīng lì精力。
我在这项计划上投入了所有精力。
I've put all of my energy into this plan.
她似乎把自己所有的精力都投入到了事业上。
She seems to devote all her effects to her career.
最早一批电脑1945年投入使用。
The first electronic computers went into operation in 1945.