1 [C,U] input (of sth) (into/to sth) what you put into sth to make it successful; the act of putting sth in 投入物；投入: Growing anything in this soil will require heavy inputs of nutrients. 在这土里种任何东西都需要投入大量养料。We need some input from teachers into this book. 我们需要老师为这本书提供一些数据。

2 [U] the act of putting information into a computer （往计算机）输入信息，输入: The computer breakdown means we have lost the whole day's input. 计算机失灵，我们一整天输入的数据全丢了。 ☞Look at output. 参看output。