彼女は有名な女優だそうだ。
tbd
據說她是個知名的女演員。
我聽說她是個有名的演員。
I hear that she is a famous actress.
It's said that she's a well-known actress.
I hear she's a famous actress.
I hear that she's a famous actress.
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题;表示与另一选项(无论是否明确提及)形成对比;表示强调