昨晚家里被小偷帮衬了 Last night, my home was honored to have the gracious presence of a thief.
帮衬：patronage；帮衬了：has been patronage of
那个餐馆，我已经帮衬了三次。I have been (patron) to this restaurant three times。
”帮衬了”means that at a moment you only concentrate your attention on one thing without noticing anything else.
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