erstwhile
01
昔日的, 以前的
having once been but no longer
例子
His erstwhile allies turned against him.
他昔日的盟友转而反对他。
The building was repurposed from its erstwhile role as a factory.
这座建筑从其昔日作为工厂的角色被重新利用。
词汇树
erstwhile
erst
while
昔日的, 以前的
词汇树
erst
while