The witness is biased and so unreliable.

证人抱有偏见，所以是不可靠的。

youdao

In its early days, the service was so unreliable it was almost unusable.

但在成立之初，它的服务却是不稳定的并且基本上不可用。

youdao

Yet now the rate of new infections seems to be slowing (the statistics are so unreliable that it is hard to say for sure), and the plague seems less threatening.

不过现在感染的人数似乎越来越少(统计数字并非可靠，不可妄下断言)，这种流行病也似乎不那么恐怖了。

youdao

Perhaps they'll remain so unreliable or difficult to assemble from the individual pieces that the impact will be negligible.

CNN: 3-D printed guns are a boon for criminals

Because emerging economies' supply of financial instruments is so unreliable, people may hoard more of them as a precautionary measure.

ECONOMIST: Global imbalances

Pam had her own cleaning business, but her employees were so unreliable that she ended up doing half the work herself.

NEWYORKER: Friendly Fire