〔李〕[pre-=before 先；empt=to buy 买⇒“to buy before others 比他人先买”→] v. secure before others；take possession of beforehand 先取；先占
〔李〕[pre-;emptv.] v.以先买权取得； 预先占有 ←em,empt (L emere,emptum)=to buy 买