1 sentence

1. 在过去的几年里，科学家一直在努力把藻类转化为生物燃料。

   zài guò​qù de jǐ​nián li, kē​xué​jiā yī​zhí zài nǔ lì bǎ zǎo​lèi zhuǎn​huà wéi shēng​wù​rán​liào.

   For the past few years, scientists have been working on converting algae into biofuel.

   Source: UM-Corpus: Education