sift verb

1 pass sth through a sieve

ADV. finely Sift the flour finely before adding it to the mixture. | in, together Beat the mixture until smooth, then sift in the remaining sugar.

2 examine sth very carefully

ADV. carefully, methodically

PREP. through They spent days carefully sifting through the evidence.

You can also check Google Dictionary: sift (English, 中文解释 )

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