裂缝: crack, crevice...
定向: to orientate, directional, directed, orienteering...
重创: to inflict heavy losses, to inflict serious damage...
日: sun, day, date, day of the month...
修: repair; build; embellish; study...
磨合: to break in, to wear in...
手表: wristwatch...
唯: only, alone...
原材料: raw materials, unprocessed materials...
花: flower, blossom, to spend (money, time), fancy pattern...
