To me she sounds ahead rather than behind.
Mooi. At that age they can be anywhere between 20-50 words. At 2 between 50-300, so it is a broad range. She is OK. Each animal noise counts as a word too. Just keep talking to her and reading books in both languages.
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Shes doing well, I wouldn't worry especially as she's learning more than 1 language. My son (18 months) only knows of 3 words (says 1 for months and then will swap to another) and has done for ages now and hasn't learnt any more apart from 'grandad' but has already forgotten after a very short time x