不知道的用英语怎么说？

不知道的

例句

• Who knows, maybe you'll find some erogenous zones he never knew he had. 谁知道呢, 也许你会发现一些他也不知道的性区域.
• This corroborative, young sir, was unknown to the ancients. 年轻的先生, 这种强壮剂古人是不知道的.
• There was so much that Sam didn't know yet... 还有很多是萨姆当时不知道的。
• There may be unrecognised cases of manifest injustice of which we are unaware. 也许还有一些我们不知道的明显不公平现象被忽视了。
• There was a warmth and passion about him I never knew existed... 他身上有一股我从不知道的热情和激情。