英语口语指导:I can't afford that

I can't afford that!我付不起!

　　I can't follow you!我不懂你说的!

　　I can't help it!我情不自禁!

　　I couldn't reach him!我联络不上他!

　　I cross my heart!我发誓是真的!

　　I don't mean it!我不是故意的!

　　I feel very miserable!我好沮丧!

　　I have no choice!我别无选择了!

　　I watch my money!视财如命!