private async Task AddNewWordsAsync(IWordsRepository wordsRepository, List <string> words)
{
var skip = 0;
var take = 100;
var n = words.Count;
while (skip < n)
{
var wordsPart = words
.Skip(skip)
.Take(take)
.ToList();
await wordsRepository.TryAddNewWordsWithNoSyncAsync(wordsPart);
skip += take;
}
}