to quit or withdraw from a competition or activity
退出或撤出比赛或活动 (tuìchū huò chèchū bǐsài huò huódòng)
"The cyclist dropped out of the race due to an injury."
"由于受伤,骑行者退出了比赛。" (yóuyú shòushāng, qíxíng zhě **tuìchū le bǐsài**.)
to tie your shoes or gear in preparation for something
to malfunction or behave unexpectedly because of a bug
to investigate possibilities for growing the business abroad
to cause prices to increase; to make costs rise
to sift carefully to find specific items
to give attention to becoming better at something