zài / shēng tài / xì tǒng / zhōng / zì yǎng shēng wù / tōng cháng / shì / shí wù liàn / de / qǐ diǎn / wèi / qí tā / shēng wù / tí gōng / néng liàng / lái yuán

在生态系统中，自养生物通常是食物链的起点，为其他生物提供能量来源。

In an ecosystem, autotrophs are usually the starting point of the food chain and provide an energy source for other organisms.