据 + Source, Clause
The preposition 据 (jù) means "according to" or "based on" and is used to cite a source of information. It typically appears at the beginning of a sentence or clause, followed by the source being referenced. For example, 据报道 means "according to reports."
据天气预报说,明天会下大雨。
Jù tiānqì yùbào shuō, míngtiān huì xià dàyǔ.
According to the weather forecast, it will rain heavily tomorrow.
据我了解,他已经辞职了。
Jù wǒ liǎojiě, tā yǐjīng cízhí le.
As far as I know, he has already resigned.
据统计,今年的游客数量增长了百分之二十。
Jù tǒngjì, jīnnián de yóukè shùliàng zēngzhǎng le bǎifēnzhī èrshí.
According to statistics, the number of tourists this year has increased by twenty percent.