chú shī yòng xiǎo huǒ jiāng niú liǔ jiān zhì wǔ fēn shú / kǒu gǎn xiān nèn

厨师用小火将牛柳煎至五分熟，口感鲜嫩。

The chef pan-fried the tenderloin over low heat to medium-rare, resulting in a tender texture.