But the attitude they have towards their own pollution is very questionable.

可是他们面对自己污染的态度太让人质疑了。

youdao

Meanwhile, it's very questionable how much effect tax rebates will have on consumer demand.

同时，出口退税将会给消费需求带来多大的影响也是令人怀疑的。

youdao

If you would ask me how is the traditional music in Belgian, well, it's very questionable, I don't know if I could give you a lot of examples.

中国传统音乐非常棒，要让我谈谈比利时传统音乐，我会不知该说什么，恐怕举不出太多例子。

youdao

That is very questionable, but I can't really disapprove of what they did.

CNN: THE SEARCH FOR STABILITY

Errol Robinson told the BBC his clients' convictions had relied heavily on a key anonymous witness with "a very questionable background".

BBC: Witness ruling halts murder trial

However, he conceded that the legality of such a move was "very questionable" and that the service was a valuable intelligence asset.

BBC: Social media talks about rioting 'constructive'