Drugs are indirectly responsible for the violence.

毒品是暴力产生的间接原因。

The depletion of atmospheric ozone may indirectly affect our use of the coastal zone.

大气臭氧的减少可能会间接地影响到我们对沿海地区的利用。

He referred indirectly to the territorial dispute.

他拐弯抹角地提到了领土争端。