diào / yú / shí / ， / fú / zi / yī / dòng / bù / dòng / ， / shuō / míng / yú / hái / méi / shàng / gōu / 。

钓鱼时，浮子一动不动，说明鱼还没上钩。

When fishing, if the float doesn't move, it means the fish hasn't taken the bait yet.