为什么well-known的最高级形式参考答案是best-known

为什么well-known的最高级形式参考答案是best-known well-known的比较级最高级 well-known最高级 famous的同义词well-known,为什么有横杠呢?还有known, WELL-KNOWN和 WELL KNOWN的区别 well-known的用法 WELL KNOWN 的近义词 well-known的意思 well known的意思是众所周知 Best Known For reasons well-known to all.well-known为什么不放在reasons的前面?to Well known