the bird has flown 1 . 要找的人逃走(或离开)了 a bird in the hand is worth two in the bush 2 . (谚)双鸟在林不如一鸟在手 the birds and the bees 3 . (非正式)(讲给儿童听的)性启蒙知识 birds of a feather flock together 4 . (谚)人以群分,物以类聚 do (one's) bird 5 . (英,非正式)服刑,坐牢 flip someone the bird (或 flip the bird) 6 . 向某人竖中指(表示轻蔑或愤怒) (strictly) for the birds 7 . (非正式)不值得考虑,算个鸟 get the bird 8 . (英,非正式)被嘘,被嘲弄 give someone the bird 9 . (英, 非正式)嘘某人,喝某人倒彩;嘲弄某人 have a bird 10 . (北美,非正式)震惊,焦躁不安 a little bird told me 11 . (幽默)[用于表示说话者不愿透露向其提供消息者为何人]有人跟我说 习惯用语 for the birds 1 . 令人不快的或无用的