5 sentences

1. 知道未来未必是好事。

   zhī​dao wèi​lái wèi​bì shì hǎo​shì.

   Knowing the future is not necessarily a good thing.

   Source: CCMatrix

2. 记住，假设未必正确。

   jì zhu, jiǎ​shè wèi​bì zhèng​què.

   Remember, assumptions are not necessarily correct.

   Source: CCMatrix

3. 朋友的朋友，未必是朋友。

   péng​you de péng​you, wèi​bì shì péng​you.

   A friend of a friend is not necessarily your friend.

   Source: CCMatrix

4. 这两者可能一样，但也未必如此。

   zhè liǎng​zhě kě​néng yī​yàng, dàn yě wèi​bì rú​cǐ.

   The two may be the same, but not necessarily.

   Source: CCMatrix

5. 一个时代的终结未必是一件坏事。

   yī​ge shí​dài de zhōng​jié wèi​bì shì yī​jiàn huài​shì.

   The end of an era isn't necessarily a bad thing.

   Source: CCMatrix