run to seed

• vi. 凋谢结子(变得不修边幅；衰退)

run to seed的用法和样例：

例句

1. He started to drink too much and gradually ran to seed.
   他喝酒过多，身体逐渐衰弱了。
2. He used to be so smart, but since his wife's death he has run to seed.
   他过去一向注意穿着，但自丧妻后，就变得随随便便，不修边幅了。