If you’re not moving forward, you’re falling behind.
无人机的未来是智能、协同和自主的。
用匠心打造精品工程,用诚信赢得市场尊重。
读书不体验认识,就好像闪电照物,一点都抓不到;读书不能身体力行,就像水上行车、陆上行舟、一点用处都没有。
The ruling class has the means of material production at its disposal; the proletariat has nothing but their labor power.