Definition: to allow someone to leave prison or to allow a person or animal to escape Level: B2
他打开笼子，把鸟儿放生了。
He opened the cage and ___set the birds ___free.
战争结束后，许多战俘被释放了。
After the war, many prisoners of war were ___set ___free.
活动家们努力为那位被冤枉的人争取自由。
The activists fought to ___set the wrongly accused man ___free.
