catchiest
adj.
（曲调、歌曲）容易记住的( catchy的最高级 );
例句:
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Current single "Dakota" leapt to the top of the charts and is definitely the catchiest song with real mainstream appeal.
来自BBC
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Radio-friendly single "Wicked Soul" is the album's catchiest number by far, but little else leaves a lasting impression.
来自BBC