### Chinese: 省内茶界专家称，采完绿茶采红茶、黑茶，茶农一年四季有收入，茶园产值直线上升。
### English: Experts from the tea industry across the province said that after picking green tea and collecting black tea and dark tea, tea farmers are earning income all year round and the tea garden output value has soared.
### Errors: There is a major error of incorrect translation has stylistic problems at "Experts from the tea industry across the province said that after picking green tea and collecting black tea and dark tea,". There is a minor error of incorrect translation includes information not present in the correct translation at "all year round".

### Improved English: According to opinion of experts in the tea industry in the province, tea farmers pick black tea after green tea and have income in all four seasons, making the  production value of tea gardens soar.