声声中国语:话可不能这么说。(Huà kě bùnéng zhème shuō.)You’d better not say that.

话可不能这么说。(Huà kě bùnéng zhème shuō.)You’d better not say that.

Explanation
这个短句一般用做插入语，位于句首或句中。当别人提出了某些观点，你不接受或不同意时，可以用这个短句委婉地反驳对方。
This phrase is often used as a parenthesis, which appears at the beginning or in the middle of a sentence. When someone puts forward a point you cannot accept or agree with, you can use this phrase to retort mildly.
Words:
开导kāidǎo:talk reason;
合作hézuò:cooperation;
粗心cūxīn:careless;
责任zérèn:responsibility.

Sentences
1、Jiă: Zhè háizi zǒngshì rěhuò,qì sǐ wǒ le, zhēn shì gāidǎ!
甲：这孩子总是惹祸，气死我了，真是该打！
A: My son always invites troubles which drives me so crazy. He is supposed to have a good smacking!
Yǐ: Huà kě bùnéng zhème shuō,dǎ háizi bùnéng jiějué wèntí, nǐ háishì yīnggāi mànmàn kāidǎo tā.
乙：话可不能这么说，打孩子不能解决问题，你还是应该慢慢开导他。
B: You’d better not say that. Punishment cannot solve the problem. You’d better try to talk reason with him.
2、Jiă: zhècì hézuò shībài le,dōu guài X iǎo Wáng tài cūxīn le.
甲：这次合作失败了，都怪小王太粗心了。
A: Xiao Wang should be blamed for the failure of this cooperation, because he was so careless.
Yǐ: Huà kě bùnéng zhème shuō,zhè jiàn shì nǐ yěshì fùzérén zhī yī,nǐ yě yǒu zérèn.
乙：话可不能这么说，这件事你也是负责人之一，你也有责任。
B: I’m afraid I cannot share that. As one of the directors of this cooperation, you also hold responsibility for that.