dredge up

基本解释

EFFECT:The foam enrich delicate, can go deep into pore help to sweep, dredge the pore, make skin breath lucid, absorb the follow-up nourishment to do the best preparation for the skin;
功效：泡末丰盛细腻，能深入毛孔赞助清洁，畅通毛孔，使肌肤呼吸畅通，为肌肤吸收后续营养做最佳筹备；
It is a man-made island heaped up by silt when the authorities undertook to dredge up the Huangpu River in 1926.
1926年为整治黄浦江河道，当时的浚浦局用疏浚之淤泥吹填成月牙形的人工岛，这就是复兴岛的由来。
Don't dredge up the past, Becks -- Shaq and Kobe are friends now.
不要再在挖掘那些过去的陈谷子烂芝麻了，小贝--沙克尔和科比已经是朋友了现在。

Along the way, they pummel each other verbally with their constant squabbling and dredge up several decades of pent-up grudges.
NEWYORKER: The Color Wheel
Then you shift gears and blame the teachers unions for protecting bad teachers that ought to be fired and dig into the all-too-deep trough of anecdotal evidence to dredge up a few examples of really bad teachers that were hard to fire.
FORBES: A Response to Megan McArdle
Present-day fishing trawlers in the North Sea occasionally dredge up the bones and tusks of the mastodons and other game from the ocean floor.
FORBES: Portrait of an Irish Genotype

If someone dredges up a piece of information they learned a long time ago, or if they dredge up a distant memory, they manage to remember it.
If someone dredges up a damaging or upsetting fact about your past, they remind you of it or tell other people about it.