"I know, I know," said Ken, grumpily, without looking up.

“我知道，我知道” 肯没好气地说着，连头也不抬。

《柯林斯英汉双解大词典》

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Even full-time constitutional lawyers could not tell you the relevant precedents without looking them up.

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Once I heard that, I knew he must be mistaken and went back to writing without looking back up.

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Without even looking up, he underhanded the game ball into the third row of now-empty seats before descending into the dugout.

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