The phrase 'ตลอดจน (dtà-lɔ̀ɔt jon)' is typically used to denote an enduring time period, a continuous process, or a change from one state or condition to another in Thai language. It is semantically similar to the English phrases 'from...to' or 'all the way until'. In the sentence, it is generally positioned between two time points or conditions, setting a starting point and an ending point of a certain situation or activity.