laboratory assistant

例句：

1. 1. She is a laboratory assistant at the university.
   她在大学担任实验室助理。
2. 2. The laboratory assistant was responsible for preparing the samples.
   实验室助理负责准备样本。
3. 3. The laboratory assistant was assisting the scientist in his experiments.
   实验室助理在科学家的实验中提供帮助。