I've seen bad grammar, but this takes the cake.

我看到过很糟糕的语法，但没有看到过这么糟糕的。

youdao

I still say that Gilardino's missus takes the cake.

我仍然会说吉拉迪诺的太太是最好的。

youdao

The beach is beautiful but the scenery is what takes the cake!

海滩很美，但是风景完全抢了它的风头！

youdao

When it comes to noisy and unsightly motorways, Parramatta Road, Sydney's major east-west artery, takes the cake.

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We've seen some pretty ambitious hand warmers in our day, but this one takes the cake.

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Most recently, the 2012 Aston Martin Rapide takes the cake for stopping traffic.

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