flush someone/something out
phrasal verb with flush verb uk/flʌʃ/ us/flʌʃ/
把（人或动物）从隐蔽处驱赶出来
to force a person or animal to leave a place where they are hiding
Planes bombed the guerrilla positions yesterday in an attempt to flush out snipers from underground tunnels. 飞机昨天轰炸了游击队的驻地，试图把狙击手从地下坑道中逼出来。
We used a dog to flush the rabbits out. 我们用一条狗把那些野兔赶出来。