16. bid n.v投标;问候,道别,努力争取a bid for power权力之争 17. bill n.账单,钞票,议案v.开账单 [僻]1. vt用(招贴、广告等)宣布The visit was billed as non-political.据宣布,这访问是非政治性的。 18. bird n.鸟 [僻]n. 某类人,古怪的人a rare