unturned是什么意思？

unturned的音标：unturned的英式发音音标为：[ˌʌn'tɜ:nd]unturned的美式发音音标为：[ˌʌn'tɜrnd]...

The police left no stone unturned to look for the child.警察千方百计地去寻找孩子.He said he would leave no stone unturned in the search for peace.他说他会尽一切努力去寻求和平。Don't leave a stone unturned. It's always something , to know...