怪不得他汉语说得那么好，他在中国住了足足十年的时间！
No wonder he speaks Chinese so well, he lived in China for a full ten years!
guàibùdé tā hànyǔ shuō dé nàyāo hǎo，tā zài zhōngguó zhù le zúzú shí nián de shíjiān！
Expressing "a full" with "zuzu"
足足 + Verb / Verb + 足足
More from Chinese Grammar HSK 6
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