她讲话时经常使用口语化的表达方式。

She often uses colloquial ___expressions in her speech.

'祝你好运'是一个表达，意思是'好运'。

'Break a leg' is an ___expression that means 'good luck'.

这些视频教授日常对话中有用的表达方式。

These videos teach useful ___expressions for daily conversation.