2019学年度人教版选修七Unit2RobotsPeriod2Language points 课件(39张)
2019学年度人教版选修七Unit2RobotsPeriod2Language points 课件(39张)第3页

1. test out

Scientists test out theories by experiment. 科学家靠实验检验理论。 test The teacher tested the children on their homework. 老师就孩子们的家庭作业进行检查。

试验;考验

vt. 测验;检验;试验;检查