其中

qí zhōng yǒu yī ge shì wǒ de péng you。

One of them is my friend.

Zhè yī lùnzhèng kànsì huánhuán xiāng kòu, rán'ér qízhōng yí ge guānjiàn qiántí bìng wèi dédào chōngfèn zhèngmíng.

The argument appears tightly connected at every step; however, one key premise has not been adequately demonstrated.

Bùtóng qúntǐ duì tóng yí zhèngcè chǎnshēng xiāngfǎn píngjià, wèibì shuōmíng qízhōng yì fāng quēfá lǐxìng, yě kěnéng fǎnyìng qí chéngdān de chéngběn bìng bù xiāngtóng.

When different groups evaluate the same policy in opposite ways, it does not necessarily mean that one side is irrational; it may reflect differences in the costs they bear.