What does 看不出 (kàn bu chū) mean in English?

Card 46IC2 Level 2046/49
CARD46
PROGRESS94%
看不出
kàn bu chū
can't make out, to be unable to tell
Click to reveal
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Reveal: Click/Space/Enter/↑↓/w/s/j/k•Navigate: ←→/h/l/a/d