许多居民亲眼目睹河水变黑,才意识到污染并非遥远的新闻。Xǔduō jūmín qīnyǎn mùdǔ héshuǐ biànhēi, cái yìshí dào wūrǎn bìngfēi yáoyuǎn de xīnwén.Many residents witnessed the river turning black with their own eyes and only then realised pollution was not distant news.
我曾亲眼目睹一只小鸟学会了飞。Wǒ céng qīnyǎn mùdǔ yì zhī xiǎo niǎo xuéhuì le fēi.I once saw with my own eyes a little bird learn to fly.
很多游客目睹了日出的全过程,激动得说不出话。Hěn duō yóukè mùdǔ le rìchū de quán guòchéng, jīdòng de shuō bù chū huà.Many tourists witnessed the whole sunrise and were too moved to speak.