tā / jīn / tiān / de / biǎo / xiàn / yī / bān / bān / méi / yǒu / fā / huī / chū / zhèng / cháng / shuǐ / píng

他今天的表现一般般，没有发挥出正常水平。

His performance today was mediocre; he didn't perform up to his usual standard.