十句英文俗諺

亡羊補牢
lock the barn door after the house is gone /lock the stable door after the horse has bolted.

對牛彈琴
cast pearls before swine.

物以類聚；一丘之貉
birds of a feather flock together.

井底之蛙
The frog in the well knows nothing of the great ocean.

早起鳥兒有蟲吃
The early bird catches the worm.

一鳥在手勝於兩鳥在林 (把握現在,別空想未來)
A bird in the hand is worth two in a bush.

寧為狗頭，不為獅尾
Better be the head of a dog, than the tail of a lion.

貓兒不在，老鼠成精
When the cat's away, the mice will play.

到處都有害群之羊
There is a black sheep in every flock.

一隻羊生病疮整群羊遭殃
One scabbed sheep infects the whole flock.