英语语法分析

Results indicated a strong antifeedant activity.

结果都表现出较强烈的拒食活性。

The fact that children from poor families rarely have the antifeedant and choosy food.

事实也说明，贫困家庭的孩子很少有拒食和挑食的。

The method for synthesizing the compounds is simple and suitable for industrial production; and the compounds have obvious activity of insect antifeedant.

该化合物具有适合工业化生产的简便方法和明显的昆虫拒食活性。