HSK 6
好不
hǎobù副
not at all ...; how very ...
看到老朋友大家好不高兴。
Kàn dào lǎo péng you dà jiā hǎo bù gāo xìng.
Everyone was delighted to see an old friend.
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New in the HSK 3.0 word list at level 6.