If we are ever going to protect the atmosphere, it is crucial that those new plants be environmentally sound.

如果我们要保护大气层，这些新工厂必须对环境无害，这一点至关重要。

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It is crucial that those new plants should be environmentally sound.

关键在于那些新发电厂应该是对环境无害的。

youdao

This year we will be encouraging employees to come up with environmentally sound approaches to what we do.

今年我们将鼓励员工对于我们的所作所为提出对环境有益的意见。

youdao

Voters have no reason to trust government pledges that flights on the new runway will be limited to environmentally sound aircraft.

ECONOMIST: Airport expansion

The only things that cannot be disposed of in an environmentally-sound way are the heavily contaminated or mixed materials like cat litter and disposable nappies.

BBC: RELATED BBC SITES

It's a prime example of how a small, environmentally sound farm can work and be profitable.

NPR: In Agriculture, Bigger Isn't Always Better