jǐng / fāng / zài / xíng / dòng / qián / shuō / míng / le / shǎn / guāng / dàn / de / shǐ / yòng / fēng / xiǎn

警方在行动前说明了闪光弹的使用风险。

The police explained the risks of using flashbangs before the operation.