solely engrossed in one thing; just (one thing, no need to worry about the rest); simply; by all means; please feel free; do not hesitate (to ask for sth)[cedict]
to draw (a bow); to pull; to stretch sth; to extend; to lengthen; to involve in; to attract; to lead; to guide; to divert (water); unit of distance equal to 10 丈[zhang1], now one-thirtieth km or 33.33 meters[cedict]