划下

to underline / to mark

to row / to paddle / profitable / worth (the effort) / it pays (to do sth)

to cut / to slash / to scratch (cut into the surface of sth) / to strike (a match)

to delimit / to transfer / to assign / to plan / to draw (a line) / stroke of a Chinese character

down / downwards / below / lower / later / next (week etc) / second (of two parts) / to decline / to go down / to arrive at (a decision, conclusion etc) / measure word to show the frequency of an action