这款洗发水据说能防脱发，但我的头发还是掉得厉害。
This shampoo supposedly prevents hair loss, but my hair keeps falling out.
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supposedly英 /səˈpəʊzɪdli/|美 /səˈpoʊzɪdli/
解释
supposedly 是副词，由动词 suppose（假设、认为）加上副词后缀 -edly 构成，意思是"据称、据说"，表示某种说法或主张的来源不确定或值得怀疑。
This shampoo supposedly prevents hair loss, but my hair keeps falling out.
supposedly 是副词，由动词 suppose（假设、认为）加上副词后缀 -edly 构成，意思是"据称、据说"，表示某种说法或主张的来源不确定或值得怀疑。