Considering that some of the users may not have enough computing resource to process the long-duration TDC II data, we also provide the 2nd-generation TDI combinations of the "scientific" datasets, which are further downsampled to 10 s or 5 s cadances (depending on the frequencies of signals). The lengths of data are generally shorter than the raw "single-link" versions, mainly because that we have removed the invalid data points caused by the time delays and downsampling filters. These results correspond to TDC II (OFFICIAL release). **We still recommand that competent users perform their customized TDI combinations and further processings, as they may have better methods. **