he completely unknown
他完全不为人知
以上为机器翻译结果，长、整句建议使用 人工翻译 。
An unknown disease affected his brain so badly that he lost his memory completely.
一种莫名的疾病严重影响了他的大脑，使他丧失了全部记忆。
youdao
So he was freed to return to his home, a world in which he was completely unknown.
于是他被释放回到了家——一个他完全陌生的世界。
Best of all, he was completely unknown outside his native Silesia.
ECONOMIST: Jerzy Buzek, doughty but adrift
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