他研究了水稻 英文怎么说

他研究了水稻，英文可以表述为 "He studied rice."

这句话的来源可能是指他研究了水稻的生物学特性、种植方法或者是水稻的历史、文化等方面。

一些英文例句及其中文翻译如下：

He is a rice expert and has pubpshed many papers on rice breeding and cultivation. (他是一位水稻专家，在水稻育种和种植方面发表了许多论文。)

Rice is a staple food for many people around the world, and he has dedicated his career to understanding and improving rice production. (水稻是全球许多人的主食，他把自己的职业献给了对水稻生产的理解和改进。)

He has spent years studying the genetic diversity of rice and its potential to adapt to different environments. (他花了数年时间研究水稻的基因多样性及其适应不同环境的潜力。)