HSK 7-9
迫不及待
pòbùjídài(idiom) unable to hold oneself back; eager to do sth without delay
孩子迫不及待地打开礼物。
Háizi pòbùjídài de dǎkāi lǐwù.
The child eagerly opened the gift without delay.
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Appears across levels (7-9) in the HSK 3.0 word list.