If evidence is flimsy, it's weak and unconvincing.

如果证据站不住脚，那它就是薄弱的，不能令人信服。

They are somewhat unconvincing, in my opinion.

在我看来，它们有些难以令人信服。

The usual explanations for the trend are unconvincing.

对于这种趋势，通常的解释是难以令人信服的。

" No, " said Ron, in an entirely unconvincing tone.

“不是。”罗恩以完全不可信的语调说。

She rearranged her features hastily in an unconvincing smile.

这时她赶紧调整了一下面部表情，露出一个不自然的微笑。

If your friends are unconvincing, this year's donations might go to, say, the geology department.

如果你的朋友们没有足够说服力的话 今年的捐款可能就被地质学院卷走了。

I tried to smile back, but the smile was unconvincing. He scrutinized my face.

我努力向他微笑，但那笑容太假了。他仔细审视着我的脸。

" Yes, it is, " said Harry, hoisting an unconvincing look of innocent surprise on to his face.

“是啊，没错。”哈利说，脸上露出了难以置信的表情，就像他一无所知，非常惊讶似的。

Instead, too much is focused on unconvincing heart-rending scenes that merely prove that he has a conscience.

相反，过多地聚焦于不够令人信服的悲情场面，这些场面只是证明了他有良心。

All this, together with an unconvincing opponent, persuaded enough Americans (and The Economist) to back him in November.

所有这些，加之对手无法令人信服，说服了足够多的美国人（和本报）在去年11月支持他。