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He gave her a surreptitious look as he took four more of her cookies.
他又把她的饼干抓走四块，还偷偷向她瞄了一眼。
youdao
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Collection of data is done in an extremely surreptitious and meticulous manner.
数据收集工作是在极其秘密细致地。
youdao
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Collection of data is done in an extremely surreptitious and meticulous manner.
数据收集工作是在极其秘密细致地。
youdao