“品牌知名度”常见的英文表达是 brand awareness 。
例如：
The company has been investing heavily in advertising to increase its brand awareness. （这家公司一直在大力投入广告以提升其品牌知名度。）
High brand awareness is crucial for a product's success in the competitive market. （在竞争激烈的市场中，高品牌知名度对产品的成功至关重要。）