to mention or speak about something
提及或讨论某事 (tíjí huò tǎolùn mǒu shì)
"As I referred to earlier, this data comes from our annual survey."
"正如我之前所提到的，这些数据来自我们的年度调查。" (zhèng rú wǒ zhīqián suǒ **tí dào** de, zhèxiē shùjù láizì wǒmen de niándù diàochá.)
to discuss something thoroughly to reach clarity
to produce a paper copy from a computer or printer
to study or investigate something deeply
to remove something unwanted from a situation or process
to reduce harmful gases released into the air
to achieve success through effort and persistence
