2. Robot can think that we make contribution. 机器人可以为我们做出贡献。
3. If we do so, your contribution to our ultimate victory will have been immense. 如果我们真的成功了，那么你对最终胜利的贡献将是巨大的。
英英解释
n.
1. any one of a number of individual efforts in a common endeavor
2. a voluntary gift (as of money or service or ideas) made to some worthwhile cause
3. act of giving in common with others for a common purpose especially to a charity
4. an amount of money contributed
5. a writing for publication especially one of a collection of writings as an article or story
