quilt / by / (indicates passive-voice clauses) / (literary) to cover / to meet with / (coll.) (since c. 2009) used before a verb that does not accurately represent what actually happened, to describe with black humor how sb or sth was dealt with by the authorities (as in 被自殺|被自杀[bei4 zi4 sha1])
to fall / to drop / to lag behind / to lose / to go missing / to reduce / fall (in prices) / to lose (value, weight etc) / to wag / to swing / to turn / to change / to exchange / to swap / to show off / to shed (hair) / (used after certain verbs to express completion, fulfillment, removal etc)