be in luck
US /bi ɪn lʌk/
UK /bi ɪn lʌk/

1.
走运, 有好运
to be in a fortunate situation or to have good fortune
:
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You are in luck, the last ticket for the concert just became available!
你真走运,演唱会的最后一张票刚刚放出来了!
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If you're looking for a good deal, you might be in luck at the new store.
如果你想找便宜货,在新店里你可能会走运。