柳の下にいつも泥鰌はいない
1
a fox is not taken twice in the same snare;there are no birds in last year's nest;there aren't always loach under the willow tree;good luck does not always repeat itself
Other forms
柳の下に何時も泥鰌は居ない 【やなぎのしたにいつもどじょうはいない】