Tā de yǎnlì hěn hǎo, yīyǎn jiù néng kànchū zhēnjiǎ.
She has a keen eye, she can tell real from fake at a glance.
Tips
usage
眼力 often implies judgment and taste, not just physical eyesight. 眼力好 means 'has a good eye for things' (quality, antiques, people). For pure visual acuity, 视力 is more precise.
