They found hydrogen sulphide levels decreased in 80% of participants.

他们发现受试者口腔内的硫化氢含量降低了80%。

Hydrogen sulphide gas bubbles up from oil deposits in the Earth's crust.

硫化氢气体从地壳内的油气储层中溢出。

The gas is a hydrogen sulphide mix that corrodes every surface it lands on.

这种气体是一种硫化氢的混合物，其所到之处，必受腐蚀。

The hydrogen sulphide that these men must breathe in is 40 times the safe level.

他们吸进的硫化氢是安全限度的四十倍。

Japanese researchers found eating the yoghurt reduced levels of hydrogen sulphide, a major cause of bad breath, in 80% of volunteers.

日本研究者们发现多喝酸奶可以减少80%的受试者体内的硫化氢含量，而硫化氢是口腔异味的主要诱因。

In 1975 a lorry driver, Thomas Carroll, died after inhaling lethal hydrogen sulphide fumes given off by two toxic loads dumped in Pitsea, which made the press across the UK.

1975 年，一名卡车司机托马斯·卡罗尔吸入了倾倒在皮特西的两批有毒货物释放的致命硫化氢烟雾后死亡，这一事件在英国引起了轰动。