HSK 2
次
cì量（形）
next in sequence; second; the second (day, time etc); secondary
我去过那家饭馆三次。
Wǒ qù guo nà jiā fànguǎn sān cì.
I have been to that restaurant three times.
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Appears across levels (2（7-9）) in the HSK 3.0 word list.