英语语法分析

Unless smokers are consistently located near more hospitable warm-water vents, chemosynthesis can account for only a fraction of the vent faunas.

除非烟囱始终位于更适宜的暖水喷口附近，否则化学合成只能占喷口动物群的一小部分。

This suggests that bacterial chemosynthesis is not a sufficient source of nutrition for these creatures.

这表明细菌的化学合成并不是这些生物的充足营养来源。

The bacteria, well the bacteria kind of feed the tubeworms through chemosynthesis, remember, that chemical reaction I described earlier.

而细菌呢，有点像通过化学合成的方式来为管虫提供食物，记得之前讲过的化学作用吧。