However, there is insufficient evidence at present to support the hypothesis that depression has a direct causal relationship with subsequent dementia.

不过，目前尚无足够的证据支持抑郁与随后的痴呆有直接因果关系的假设。

youdao

However, at present the country's energy potential is virtually in hibernation because of poorly maintained equipment.

然而，由于设备管理不善，该国目前的能源潜力实际上正处于冬眠状态。

youdao

However, the alternatives to PVC could likewise grow in volume in the future, making them less expensive and more competitive than they are at present.

然而，PVC的替代产品在将来也会达到大规模生产，这会让它们比现在更便宜也更有竞争性。

youdao

At present the tops, however, and the brittle plastic that makes up things like margarine tubs, have so little that they're not worth recycling.

BBC

However, at the present time in our country, virtually nobody under age 35 has been vaccinated.

CNN: Dr. William Hall: Medical impact of bioterrorism

At present, however, the majority of the 15-member Security Council are either against war or sceptical.

ECONOMIST: In need of resolution