The psychology department conducted a laboratory research to study the effects of sleep deprivation on memory.
心理学系进行了实验室研究，以研究睡眠剥夺对记忆的影响。
Students in the science class performed laboratory research to understand the principles of photosynthesis.
科学课上的学生进行了实验室研究，以理解光合作用的基本原理。