美[?retro???kt?v] 1 . The seagulls swirled in aerial combat over the barges.
海鷗盤旋在駁船上方，展開空中的搏斗。
來自柯林斯例句
2 . a flock of seagulls
一群海鷗
來自《權(quán)威詞典》
3 . Seagulls followed in the wake of the huge ship.
海鷗尾隨于大船之后.
來自《簡(jiǎn)明英漢詞典》
4 . The seagulls were wheeling in the air above the ship.
海鷗正在船上面盤旋.
來自《現(xiàn)代漢英綜合大詞典》
5 . There is a seagull perched atop the mast.
有一只海鷗停歇在桅桿上.
來自《簡(jiǎn)明英漢詞典》
1.descriptive of any event or stimulus or process that has an effect on the effects of events or stimuli or process that occurred previously
2.affecting things past;
retroactive tax increase
