sth.后面加形容词 那是 固定搭配
good不能放在somesing前面没有这种用法
It's time to do something good for my health 是时候好好安养了
to keep (one's) fingers crossed:to hope something good will happen (祝福某人好运或一切顺利.把食指与中指交叉,祈求好运,是老外的迷信
Something that is good.好的东西