前例: precedent 短语和例子史无前例 without precedent in history; unprecedented; 无前例可援 have no precedent to go by; 你要我做的事有前例可援吗? is there a precedent for what you want me to do
准前例处理: to be settled by following precedent permitgrantallowapprove
援: Ⅰ动词1.(以手牵引) pull by hand; hold 短语和例子攀援 climb up by holding on to sth.2.(引用) quote; cite 短语和例子他援用了一些中国话来解释他的论点。 he quoted some old chinese sayings to illustrate his points. 有例可援。 there's a
