be slow on the uptake
US /bi sloʊ ɑn ðə ˈʌpˌteɪk/
UK /bi sloʊ ɑn ðə ˈʌpˌteɪk/

1.
lambat memahami, susah faham
to be slow to understand something
:
•
He tends to be slow on the uptake, so you might need to explain it twice.
Dia cenderung lambat memahami, jadi anda mungkin perlu menerangkannya dua kali.
•
Don't worry if you are slow on the uptake; some concepts just take more time.
Jangan risau jika anda lambat memahami; sesetengah konsep hanya memerlukan lebih banyak masa.