He's not allergic to all food, just specifically food cooked with soy oil.

他不是对所有的食物都过敏，只是用豆油做的那些会过敏。

This machine simultaneously heats and presses the beans, producing a liquid containing soy oil and other fatty components.

这种机器同时加热和压榨豆子，产生含有大豆油和其他脂肪成分的液体。

By adding water and spinning the mixture, components are separated into two parts: refined soy oil for things like salad dressing, and a substance called lecithin.

通过加水和旋转混合物，成分被分离成两部分：用于沙拉酱等的精炼大豆油，以及一种叫做卵磷脂的物质。